Answer:
option d
Explanation:
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To reduce Air Pollution by automobiles, Emission Testing has been implemented.
How Air Pollution is caused by Automobiles?
The pollutants produced from vehicle carries toxic gases like Carbon Monoxide, Nitrogen Oxides, Volatile Organic Compounds and Sulphur Dioxide.
Research has shown that an average car can create almost 6 tonnes of pollutants each year.
These effluents released from the vehicles are the main ingredient of smog that causes respiratory problem, skin irritation and in extreme causes cancer.
What is Emission Testing?The Emission testing procedure helps in gauging the car's emission and ability to track the pollutants it releases.
A test can potentially review the levels of pollutants such as CO2, Hydrocarbons, CO, NOx and other such emissions releasing from car.
Different Emission Testing procedures are:
- On-Board Diagnostic inspection
- Acceleration Simulation Mode (ASM) test
- Two Speed Idle test
Once all the test is cleared, the car can be legally registered and is safe for driving.
The driver should maintain the requisite paperwork and if required have to undergo another test in near future.
If the Vehicle could not pass the test:
- The car would be emitting excessive HC or CO above the mentioned standards.
- Unable to collect valid exhaust sample due to leak in the exhaust system or poor engine adjustment.
- OBD emission control components or the Dashboard MIL are malfunctioning.
- The gas cap is not creating a tight seal and could be leaking vapors.
These above issues can be remedied with regular maintenance by undergoing diagnostic test.
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Anyone know? I keep getting it wrong.
The Answer Is C
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How is the external parts of the leaf is important in the process of photosynthesis
Answer:
The epidermis has tiny pores called stomata that control transpiration and gas exchange with the air. For photosynthesis, stomata must control the transpiration of water vapor and the exchange of carbon dioxide and oxygen.
Explanation:
what are the general characteristics of flowering plants?
ill give brainiest
Answer:
Angiosperms have small pollen grains that spread genetic information from flower to flower. These grains are much smaller than the gametophytes, or reproductive cells, used by non-flowering plants. This small size allows the process of fertilization to occur quicker in the flowers of angiosperms and makes them more efficient at reproducing
Explanation:
Why is CO2 important?
Carbon dioxide is an important greenhouse gas that helps to trap heat in our atmosphere. Without it, Earth would be cold
In the gold rush of 1849, prospectors found a yellow mineral that appeared to be gold, but was harder and more brittle than gold. What is this mineral that came to be called “fool’s gold”?
Answer:
Pyrite
Explanation:
I hope this helps!
Answer:
Pyrite
Explanation:
I hope this helps!
Are data that do not support a hypothesis useful?
A. Yes, because the data prove that the experiment was designed
poorly
B. Yes, because the data provide useful information that can lead to
more testing
C. No, because the data show that the experiment failed
D. No, because the data must be inaccurate
BRIEFLY EXPLAIN what you would say is the difference between XXX SYNDROME AND XYY SYNDROME.
BoldItalicUnderline / write answer in comments so I can copy and paste no fakes or get reported:))
Answer:
Trisomy X, also known as triple X syndrome and 47,XXX, is characterized by the presence of an extra X chromosome in each cell of a female. Those affected are often taller than average.
Klinefelter syndrome (sometimes called Klinefelter's, KS or XXY) is where boys and men are born with an extra X chromosome. Chromosomes are packages of genes found in every cell in the body. There are 2 types of chromosome, called the sex chromosomes, that determine the genetic sex of a baby.
Explanation:
what type of cloning is considered an ethical concern
Explanation:
Therapeutic cloning raises several different but related ethical issues. These include the appropriateness of creating embryos with the intention of destroying them, of hastening the day when reproductive cloning might become feasible, and of fostering a market in human oocytes for research purposes.
Why does the concentration of CO2 go up and down throughout the year?
the role of plants in carbon cycle
Explanation:
the amount of CO2 found in the atmosphere varies over the course of a year. much of this variation happens because of the role of plants in carbon cycle...respiration occurs all the time, but domains during the colder months of the year, resulting in higher CO2 levels in the atmosphere during those months.
On This Earth Day, It's Easier to be Green
By Micheline Maynard
1.
Why does the author think it's easier to be "green" now than when Earth Day first started?
2.
What is "pro-environmentalism socialization"?
3
What are some ways school campuses are helping students contribute to being green?
Bikes and Cars: Can They Ever Get Along?
Answer: Answer to number 1
Explanation:
He thinks now days things were better than they were back then.
name any two organs involved in digestive systemgifjritxudufhg
Answer small and large intestines
What are some of the obstacles to finding the solutions for climate change ?
Obstacles:
1.Lack of good governing system
2.Lack of formation of climate change investigation team
3.Awareness is not generated according to need
4.Passive concerned authorities
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Write an argument for describing the human body as a system.
Answer:
Our bodies consist of a number of biological systems that carry out specific functions necessary for everyday living. The job of the circulatory system is to move blood, nutrients, oxygen, carbon dioxide, and hormones, around the body. It consists of the heart, blood, blood vessels,arteries and veins.
Explanation:
A giraffe has a really long neck and feeds on the leaves of plants. How is having a long neck an adaptation that helps the giraffe to survive? (2 points) a It allows the giraffe to eat the plants faster than other animals. b It allows the giraffe to get food from tall trees that other animals cannot reach. c It helps the giraffe keep balance as it eats plant leaves. d It helps the giraffe run faster when attacked by predators.
Answer:
B.) It allows the giraffe to get food from tall trees that other animals cannot reach.
Explanation:
-
One of the distinguishing characteristics of a giraffe is its long neck. The neck has several important roles and specific functions Feeding. With the aid of its long neck a giraffe is able to reach leaves fruit and flowers high up in Vachellia or Senegalia. Formerly Acacia and other sought after tree species. Giraffe are thus equipped to exploit a band of foliage. So answer would be B
how dose ecosystem behave as a system
Which theme includes how humans adapt, modify or depend on the environment?
1,region
2.movment
3.place
4 human environment interaction
List all the biotic and abiotic factors in figure 4
Answer:
1
Explanation:
Pls help question is in picture
Answer:
it is d trust me i took the test
Explanation:
if the species are separated there will be less interfering between species
A farmer’s profit is determined by the amount by which the sale value of the ___ ___ exceeds the cost of production and distribution.
Answer:
profits farmer
Answer:
Crop yield
Explanation:
Galaxy #7 To which category does galaxy #7 belong? Why does it belong in this category?
Answer:
Elliptical galaxy category
Explanation:
An elliptical galaxy doesn't have spiral "arms" and has a smooth light that slowly decreases as it stretches out from the center. This means that the center is the brightest and as it goes out in different directions, the brightness decreases.
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Explain why it is important to monitor environmental parameters when making policies involving resource use.
Answer:
Environmental parameters indicate whether or not resource use is harming the environment and this way monitoring environmental parameters affect policies regarding resource use.
Explanation:
Answer:
Human activity has an impact on the environment. In order to minimize the impact of human activity it is important to understand factors that affect the environment. It is also important to know how different human activities affect those environmental factors. This knowledge can be obtained by monitoring specific environmental parameters. For resource use, specifically, it is important to monitor changes in the environment to decide the level and frequency of resource use in certain areas.
Explanation: Edge 2021
Some populations of Atlantic tomcod fish have an allele that makes the fish resistant to toxic pollutants called PCBs. Tomcod populations in several rivers were analyzed for the presence of this allele. Each river had varying levels of PCB pollution. Which of the following results would best support the conclusion that natural selection is influencing the presence of this allele in the tomcod populations?
A. All of the tomcod in each of the rivers have this allele.
B. The percentage of tomcod with this allele remains the same from year to year in each river.
C. The rivers with high PCB levels have larger percentages of tomcod with this allele than the rivers without PCBs.
D. Eggs from tomcod without this allele can hatch in rivers with or without PCBs, and eggs from tomcod with this allele can only hatch in rivers without PCBs.
Answer:
D
Explanation:
Hope it helps#CARRYONLEARNINGEggs from tomcod without this allele can hatch in rivers with or without PCBs, and eggs from tomcod with this allele can only hatch in rivers without PCBs.
What is Tomcod populations?A benthopelagic piscivore, the Atlantic Tomcod is also known as frostfish or tommy cod. Although large ones are allegedly caught less frequently than they once were in estuary rivers, it is still abundant around the seacoast.
Although anadromous, Atlantic tomcod do not migrate very far between fresh and salt water. In shallow brackish or fresh water, sand and gravelly bottoms are where eggs are laid. Masses of eggs sink to the bottom.
Within 24 hours of hatching, newly hatched larvae swim to the surface to breathe surface air before their pneumatic duct closes. Young-of-the-year may spend their first spring and summer in fresh or barely brackish water, but they eventually move into estuaries and nearshore waters.
Therefore, Eggs from tomcod without this allele can hatch in rivers with or without PCBs, and eggs from tomcod with this allele can only hatch in rivers without PCBs.
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The brain's complexity arise from the: A. Communication between the hind mend and forebrain B. Functions of individual neurons. C. Division between 2halves of the cerebral cortex. D. Complex connections
Answer:
B. Functions of individual neurons.
Explanation:
The brain is the body's most essential organ and consists of 86 billion neurons. Which all connect to the CNS central nervous system and have complex instructions. These depend on the social and economic impacts. The brain has various physical and mental states and their international at functional levels lead to complex behavior.Answer:
Complex connections of simple pieces
Explanation:
a p e x
The main function of leaves is to give beauty to the plant . True or false
Answer:
no,
Explanation:
The main function of a leaf is to produce food for the plant by photosynthesis
Answer:
the answer is false
X + H20 → Y + O2(what would be y in this equation ?)
Answer:
y. 2. • CxHy + O2 → x CO2 + y/2 H2O. Combustion Problem. Erythrose is an important mono-saccharide that is used in chemical synthesis. It contains Carbon.
Explanation:
In the chemical equation X + H₂O → Y + O₂, Y represents the product of the chemical reaction, here Y is the glucose, and this X is carbon dioxide, and this is a reaction of the photosynthesis.
What is photosynthesis?During photosynthesis, the energy from light is used to split water molecules into oxygen and hydrogen ions. The oxygen is released into the atmosphere as a waste product, while the hydrogen ions are used to create a chemical gradient across the thylakoid membrane within the chloroplast. This gradient is then used to power the creation of ATP, the energy currency of cells, as well as to reduce carbon dioxide to form organic molecules, such as glucose. The overall equation for photosynthesis is:
6 CO₂ + 6 H₂O + light energy → C₆H₁₂O₆ + 6 O₂
Hence, In the chemical equation X + H₂O → Y + O₂, Y represents the product of the chemical reaction; here, Y is the glucose.
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Paragraph on climate change
Answer:
Global warming, also known as Climate Change, means the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air.
Explanation:
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which of these statements about the stars' apparent motion in the night sky are true? choose all that apply ( it could be more than one answer)
A. The orbit of stars around the sun causes stars to appear to move in the night sky.
B. The orbit of stars around the center of the galaxy causes stars to appear to move in the night sky
C. The rotation of earth on its axis causes stars to appear to move in the night sky.
D. The orbit of earth around the sun causes stars to appear to move in the night sky.
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What happens when a muscle contracts?
It shortens
It lengthens
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[tex]\sf\purple{It\:shortens. }[/tex] ✅Muscle contractions are defined by changes in the length of the muscle during contraction.When muscles contract, they become shorter, stiffer and thicker.[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]
Jack found a fossil in a rock that he dug up. The fossil is of a fish.
Which can the fossil tell him about the land when the fish was alive?
Jack found a fossil in a rock that he dug up. The fossil is of a fish. That there was water there once. A fossil record provides the proof of the typical progenitor and its many species.
What are the fossils?Fossils are the preserved remains of flora and faunna whose bodies were seeded in sediments, such as sand and mud, under ancient seas, lakes and rivers.
Fossils also include any preserved trace of life that is usually more than 10 000 years old.
Thus, The fossil is of a fish. That there was water there once.
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Which is a chemical property?
A. Mass
B.flammability
Answer:B flammability
Explanation:
Its a chemical change because the chemicals in the substance change when being lit on fire (example burning wood)