Biology Middle School

Classify weathering by lichens growing on rocks.
mechanical
chemical
mechanical biological
chemical biological

Answers

Answer 1

Answer:

chemical biological,

Explanation:

this must mean it equals chemical (:

Related Questions

Astronomers have developed several ways to measure the vast distances between Earth and the stars and galaxies. What do you know about two of these techniques? (Choose 4)
A The A.U. is used to measure distance within our solar system.The A.U. is used to measure distance within our solar system.
B An astronomical unit (A.U.) is the average distance between the Earth and the Sun.An astronomical unit (A.U.) is the average distance between the Earth and the Sun.
C Our galaxy, the Milky Way, is about 150 light-years across.Our galaxy, the Milky Way, is about 150 light-years across.
D A light-year (ly) is the distance that light can travel in one year in a vacuum.A light-year (ly) is the distance that light can travel in one year in a vacuum.
E Astronomers measure distances to objects which are outside our solar system in light-years.Astronomers measure distances to objects which are outside our solar system in light-years.
F An astronomical unit is about 93 million kilometers.

Answers

A. The average distance between the Earth and the Sun, or A.U., is used to measure distances within our solar system.

D. Distances to things outside of our solar system are measured in terms of light-years (ly), which are the maximum distances light can travel in a year in a vacuum.

To calculate the immense distances in the cosmos, astronomers mostly employ two methods. An astronomical unit (A.U.), often known as the average distance between the Earth and the Sun, is used as a standard measurement within our solar system. One A.U. is equivalent to 150 million kilometres or 93 million miles. Within our solar system, it is used to calculate the separations between planets, asteroids, and comets. Second, astronomers use light-years to gauge distances outside of our solar system (ly). The distance that light can cover in one year in a vacuum, or 5.88 trillion miles or 9.46 trillion kilometres, is known as a light-year. We may use this method to calculate the huge separations between stars, galaxies, and other astronomical objects. As a result, astronomers employ A.U.

This is timed Please Help

Answers

Answer:

Answer:

1. physical

2. chemical

3. physical

4. physical

5. chemical

6. physical

7. physical

8. chemical

9.physical

10. physical

11. chemical

12. chemical

13. physical

14. chemical

15. physical

16. chemical

17. physical

18. chemical

19. chemical

20. chemical

21. chemical

Explanation:

Physical changes can usually be reversed, and no new substances are created in a physical change. In a chemical change, it can’t be reversed, and there is a creation of new substances.

With this in mind:
Freezing juice is a PHYSICAL change (it can be reversed easily if the juice ice is melted, and no new substances are created)
Exploding fireworks is a CHEMICAL change (it happens due to combustion, which produces heat and light as new products, and you can’t undo the explosion of the fireworks)
Melting a chocolate bar is a PHYSICAL change (it can be reversed easily, and there are no new products as it’s the same chocolate, just as liquid)
Cutting grass is PHYSICAL (no new products are created, and whilst it can’t technically be reversed the grass will grow back, so eventually it will go back to its original state)
Rotting bananas is a CHEMICAL change (the rot creates a new substance on the bananas and it can’t be reversed)

With this logic, we can continue answering the rest.
Cutting hair is PHYSICAL
Squeezing oranges is PHYSICAL
A log burning in a fireplace is CHEMICAL
A change that does not result in a new substance is PHYSICAL
Dissolving sugar in water is PHYSICAL (this one can be tricky but it’s important to remember it can be reversed via evaporation and no new product is technically created)
Rust on an iron fence is CHEMICAL
Cake batter baked in an oven is CHEMICAL
Blue and yellow pain being mixed is PHYSICAL (while a new colour is produced and the change isn’t reversible, the change is chemical as the structure of the paint is exactly the same and no new substance is technically created)
Photosynthesis is CHEMICAL
Glass being shattered is PHYSICAL
Boiling water is PHYSICAL
Burning coal is CHEMICAL
Melting butter is PHYSICAL
Cooking eggs is CHEMICAL

When the oxygen in the air combines with the iron exposed by paint peeling off an old
bicycle, a new, red-colored, crumbly substance is formed.

Physical or chemical?
Specific type of physical or chemical

Answers

Answer:

Chemical change

Explanation:

it’s chemical and oxidation

The beach in Antibes, France, is composed of small, smooth rocks that have been worn
down by being tumbled against each other by the energy of the sea water

Physical or chemical?
Specific type of physical or chemical

Answers

Answer:

the second answer is the second answer

it is physical weathering and abrasion

Which layer of soil is generally hard and packed?

bedrock
topsoil
subsoil
parent material

Answers

Answer:

Bedrock is the layer of soil that is generally hard and packed.

C. Subsoil
Subsoil is made up of small particles that has very little living/once was living materials, which makes them hard and packed.

Choose the answer that describes biological weathering.
lichen growing on rocks
stone and boulders moved by water
salt crystallization forming tafoni
acid in water acting on limestone

Answers

Answer:

Acid in water acting on limestone describes biological weathering.

Explanation:

Acid in water acting on limestone

How can humans manipulate soils? Select all that apply.

removing bedrock
changing the acidity
adding decaying material such as mulch
adding nutrients

Answers

Answer:

All of the options are correct:

Explanation:

adding decaying material such as mulch and adding nutrients

I will give brainiest
Please no jokes or incorrect answers
Sorry if I picked the wrong subject
(20 POINTS)

Answers

he eat is he eat it for lunch

I think E I don’t know why but I do, I may be wrong

What technology did the U.S. Geological Survey (USGS) develop to help monitor volcanic activity at the five monitoring stations in the continental U.S., Alaska, Hawai'i, and the Mariana Islands?

A.) National Seismology Center
B.) Volcano Notification Service (VNS)
C.) National Volcano Early Warning System (NVEWS)
D.) Federal Emergency Management Agency (FEMA)

Answers

Infrasound monitoring, technology did the U.S. geological survey (USGS) develop to help monitor volcanic activity at the five monitoring stations in the continental u.s., Alaska, Hawaii, and the Mariana islands.
What is USGS?
The United States Geological Survey was the established in 3 March 1879. The location is the United States. The foundation annual budget is $1.497 billion. The number of the employees on work is 8,670. The Jurisdiction is United States. It was the scientific agency of government.
Volcanologists use was the five monitoring stations in the continental. Alaska, Hawaii, and the Mariana islands and United States is the important. The United States Geological Survey was he used in the infrasound monitoring was the explosions inside volcanoes.
As a result, the significance of the United States Geolo
The U.S. Geological Survey (USGS) developed the National Volcano Early Warning System (NVEWS) to help monitor volcanic activity at the five monitoring stations in the continental U.S., Alaska, Hawai'i, and the Mariana Islands.

Wind, water, and gravity, temperature changes, and pressure changes are all a cause of what process?

biological weathering
acid weathering
chemical weathering
physical weathering

Answers

Answer:

Wind, water, and gravity, temperature changes, and pressure changes are all a cause of physical weathering.

Explanation:

Physical weathering as wind water and gravity are physical

Keiko said the three areas where volcanoes form are at convergent, divergent, and transform plate boundaries. How should Keiko’s answer be corrected?
Hot spots should replace divergent plate boundaries.
Subduction zone should replace convergent plate boundaries.
Subduction zone should replace transform plate boundaries.
Hot spots should replace transform plate boundaries.

Answers

Answer:

Hot spots should replace transform plate boundaries.

What conditions will help build high-quality soil? Select all that apply.

low temperatures
high precipitation
high temperatures
low precipitation

Answers

Please give brainliest
Answer:

High precipitation and low temperatures
High precipitation is the answer

Shanice said the three types of mountains are folded, tilted, and volcanic. How should Shanice’s statement be corrected?
fault-block should replace volcanic
lifted should replace volcanic
lifted should replace tilted
fault-block should replace tilted

Answers

Answer:

D. fault-block should replace tilted

Explanation:

The 3 types of mountains are: fold(ed), fault-block, and volcanic.

She listed tilted, which is not a main type. She did not list fault-block, so it should replace tilted.

Let me know if this helps!

How can biological weathering result in chemical erosion?

Roots loosen soil and break rocks.
Large herds trample rocks and break up soil.
Plants transpire water vapor.
Bacteria release acids and other agents that break down rock.

Answers

Answer: Biological weathering only refers to weathering caused by organisms -- animals, plants, fungi and microorganisms such as bacteria. While certain forms of biological weathering, such as the breaking of rock by tree roots, are sometimes categorized as either physical or chemical, biological weathering can be either physical or chemical

Explanation:

Answer:

Biological weathering can result in chemical erosion through the action of bacteria that release acids and other agents that break down rock.

Explanation:

As the bacteria colonize rocks and soils, they produce organic acids and other metabolic products that react with the minerals in the rock, causing them to break down and dissolve. Over time, this process can weaken and erode the rock, leading to chemical erosion. Additionally, the action of roots can also contribute to chemical erosion by releasing organic acids into the soil, which can further break down rock and mineral surfaces.

What types of organisms do chemical biological weathering? Select all that apply.
sea urchins
lichens
bacteria
trees

Answers

My guess would say Lichens and Bacteria because of course so bacteria breaks down and Lichens are a type of fungi
Lichens
Bacteria
Trees

What type of weathering occurs to statues when they lose their features over time due to rain?

mechanical biological
chemical biological
mechanical
chemical

Answers

Answer:

Mechanical Weathering

Explanation:

Statues are typically made of rock or some other material similar to rock. Mechanical weathering is the breakdown of rocks into smaller pieces, which is why it is a type of mechanical weathering.

Answer:

The type of weathering that occurs to statues when they lose their features over time due to rain is chemical weathering.

Explanation:

Rainwater is slightly acidic due to the presence of carbon dioxide in the atmosphere, which dissolves the minerals present in the rock or stone of the statues over time. This process is known as chemical weathering, and it can cause the loss of features and details of the statue's surface. Over time, chemical weathering can completely erode a statue's features, leading to a smooth, worn surface.

Abrasion can occur due to what? Select all that apply.

water
gravity
wind
altitude

Answers

Answer:

Water, gravity, and wind can all cause abrasion. Altitude is not a factor in abrasion.

Explanation:

Answer: Altitude is not a factor in abrasion. The option which is left behind is the wrong answer

Explanation:

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