for about how long do scientists think wind and solar power can provide us with energy?

100 years

1,000 years

1,000,000 years

virtually forever

Answers

Answer 1

Answer:

virtually foever

Explanation:

wind and solar are renewable energy sources....


Related Questions

Identify ONE process that causes the metamorphism of an igneous rock into a metamorphic rock.

Answers

Answer:

Heat

Explanation:

 Contact metamorphism happens when hot magma or lava comes into contact with rocks, causing a small area to change into a metamorphic rock. Contact metamorphism will be present on the outside edges of igneous intrusions.

Heat and/or pressure causes the metamorphism of an igneous rock into a metamorphic rock.

What is metamorphic rock?

Metamorphic rocks refer to as some other type of rock, but have been substantially changed from their original igneous, sedimentary form. Metamorphic rocks formed when rocks are subjected to high heat, high pressure, hot mineral fluids or, more commonly, some combination of these factors.

Contact metamorphism occurs in rock exposed to high temperature and low pressure, as might happen when hot magma invades into or lava flows over pre-existing protolith. This combination of high temperature and low pressure generates numerous metamorphic facies.

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climate change storys​

Answers

We pollute the environment with greenhouse gasses to the earth's climate is getting warmer

Select the part whose main job is to help a plant cell make proteins. (Will give brainliest if correct.)

Answers

Answer:

The endoplasmic reticulum

Explanation:

The endoplasmic reticulum is responsible for the production of proteins.

Answer:

Endoplasmic reticulum

Explanation:

Cuáles son las características de la vida que no están presentes en un virus?

Answers

Answer:

을 수 있는 것입니다 수 있는 것입니다 수 있는 것입니다 수 있는 것입니다 수 있는 것입니다 것입니다

Explanation:

I'm actually a Korean I cannot understand that what you said.

How are the Hawaiian honeycreepers an example of adaptive radiation?



There were a large variety of honeycreepers that first inhabited the island. They found many different niches, so they were all able to survive.


The honeycreepers that first inhabited the island were able to adapt as the island changed, so that population of birds was able to survive.


There was a diversification of honeycreepers (each with different beak shapes) to help fill various ecological niches.

Answers

Answer: In adaptive radiation, many different species evolve from a single ancestor species. Each new species evolves to exploit a different niche, such as food source. In the example above, Hawaiian honeycreepers evolved a range of bill forms in response to available food sources on the Hawaiian archipelago. The honeycreepers dispersed from one founder species, and evolved in response to natural selection based on different food sources in their isolated habitats provided by water. Seed-eating birds evolved thick, short beaks.

1. What else has to be
reproduced in a host cell to
produce a new virion?

Answers

Answer:

RNA viruses usually use the RNA core as a template for synthesis of viral genomic RNA and mRNA. The viral mRNA directs the host cell to synthesize viral enzymes and capsid proteins, and to assemble new virions.

Explanation:

How would you expect the number of births to compare to the number of deaths in a population that was changing?

Answers

Population Growth - Basic Information
All populations change in size with time
- if births exceed deaths, the population grows
- if deaths exceed births, the population shrinks
- only when births equal deaths does the population stay the same
Other Population Growth Factors
Populations can also change size if organisms move in (immigration) or leave (emigration)

Putting It All Together
We can write a simple equation to show population growth as:

Change in Population Size = (Births + Immigration) - (Deaths + Emigration)

Expressing Population Changes as a Percentage
Suppose we had a population of 100,000 individuals. Suppose in one year there were 1000 births, and 500 deaths.
What percentage of the population were births?
1000/100,000 = 0.01, or in percentage terms, this is 1% of the population.

What percentage of the population were deaths?
500/100,000 = 0.005, or in percentage terms, this is 0.5% of the population.

Assume immigration equals emigration. If so, then they cancel out of our population equation. We'll come back to
this assumption later.

Now, subtract deaths from births but express as a percentage:
1000-500/100,000 = 500/100,000 = 0.005, or 0.5% net growth

Thus, this population would be growing by 0.5% this first year. That means that after one year, there will be 500 more
individuals than the previous year. So, after one year, the population would be 100,500 individuals.

The Net Reproductive Rate
The net reproductive rate (r) is the percentage growth after accounting for births and deaths. In the example above, the population reproductive rate is 0.5%/yr.

Net reproductive rate (r) is calculated as: r = (births-deaths)/population size or to get in percentage terms, just multiply by 100.

Suppose we came back many years later, the net reproductive rate was still the same, but now the population had grown to 1,000,000. How many new individuals would be added each year now? Simply multiply the population by the reproductive rate:
1,000,000 x 0.05 (which is 0.5%) = 50,000

This means that now 50,000 new individuals are added in one year!! The net reproductive rate is the same as before, but because
the population is so much bigger, many more individuals are added.

Exponential Growth
If a population grows by a constant percentage per year, this eventually adds up to what we call exponential growth. In other words, the larger the population grows, the faster it grows!! A curve of exponential growth is an upward sweeping growth curve.

This cat has patches of orange, black, and white fur.

The above statement describes the:

Answers

Answer:

calico cat

Explanation:

A calico cat is a domestic cat of any breed with a tri-color coat. The calico cat is most commonly thought of as being typically 25% to 75% white with large orange and black patches (or sometimes cream and grey patches); however, the calico cat can have any three colors in its pattern.

40. What characteristic of the yeti crab contributes to its name?
-It is mentioned in mythology.
-It is covered with setae.
-It is found in the Himalayas.
-It is larger than other crabs.

Answers

Answer:

-It is covered with setae.

Explanation:

The yeti crab is given the name Yeti as it has hairs on its legs and thus resembles those of the yeti that lives in the snow-capped Himalayas. The crab has been know to be discovered during the southeastern pacific expedition of the microplates. Satae is a type of hair that grows on the body of animals or organisms. The crab is noticeably 15 cm long and the fur covers the legs and claws.

what is the answer to this

Answers

The answer is the first one

Answer:

to allow implantation of the embryo

the first box is correct

2. Why is it important to have diversity within a population?
a. Better chances of survival in a changing environment
b. Mutations
c. To reach carrying capacity
d. To encourage evolution

Answers

Answer: I believe the correct answer is A

Explanation:

Draw conclusions: Natural selection is the process by which favorable traits tend to
increase in frequency over time.

How does this experiment illustrate natural selection?

Answers

Answer:

it illustrated natural selection because the most favorable traits live longer than the unfavorable traits.

Explanation:

10 points for each answer no links
Ethan began making a model to show the processes which resulted in the formation of oceans.
Which of the following would be the next step in the process?
A. The crust is broken down
B. Earths crust moves
C. Earths plates meet
D. Seafloor spreading

Answers

Answer:

c

Explanation:

(b)
The allele for blue eyes is recessive (b).
The allele for brown eyes is dominant (B).
A woman has blue eyes.
What are the woman's alleles?
Tick one box.
BB
Bb
bb​

Answers

The answer is bb (the only possible option because all the others suggest the woman’s eyes are brown)

Which statement describes a possible effect of climate change? Choose all that apply:

A pond of water drying out due to changes in average temperature.

A bear eating lots of food to store fat before hibernation because it needs to stock up on energy for winter.

A beetle adapted to warm temperatures living longer in its habitat and thus killing populations of trees.

Squirrels burying pine cones to be able to eat them later.​

Answers

Answer:

a pond of water drying out due to changes in average temperature

What are some short and long term positive benefits of the printing press

Answers

short-term and long-term positive contribution of the printing press was and is the ability to disseminate knowledge quickly. Through the printing press, more people could have access to new ideas, and those ideas radically changed the landscape of the Holy Roman Empire.

Which is the best definition of a phylogenetic tree?

Answers

Answer: A phylogenetic tree is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics.

Explanation:hope I helped (can I get braincrown)

Definition: A phylogenetic tree is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor

Hope this helps!

What cell is shown in the diagram

Answers

Answer:

I believe the cell is a plant cell

Hope this helped :)

Please answer correctly and quickly

Answers

Answer:

C.

Explanation:

____________________ is a series of chemical reactions that convert light energy, water, and carbon dioxide into glucose and oxygen. Photoperiodism Cellular respiration Photosynthesis Pollination

Answers

Answer:

Photosynthesis

Explanation:

A Venus flytrap captures insects by responding to which type of stimulus? *
touch
gravity
light

Answers

Answer:

touch

Explanation:

When the fly lands on the Venus flytrap receptors send a signal to the "brain" of the plant then the mouth chomps down

write about prokaryotic cell​

Answers

Answer

A prokaryote is a simple, single-celled (unicellular) organism that lacks an organized nucleus or any other membrane-bound organelle. ... Prokaryotic DNA is found in a central part of the cell: the nucleoid. Most prokaryotes have a peptidoglycan cell wall and many have a polysaccharide capsule.

Explanation

Bacteria are examples of the prokaryotic cell type. An example is E. coli. In general, prokaryotic cells are those that do not have a membrane-bound nucleus. ... Besides bacteria, the cyanobacteria (blue-green algae) are a major group of prokaryotes.

Mark me as brainliest please

6. Below, fill in the missing bases from this DNA molecule.

Answers

Answer: g and c, c and g, a and t, t and a, g and c, c and g, a and t, c and g, t and a, c and g, g and c, c and g, a and t. brainliest?

Explanation:

The missing bases from this DNA molecule are filled as below:

GC, CG, TA, AT, TA, GC, CG, AT, CG, GC, TA, CG, GC, CG, and AT.

What is a DNA molecule?

A DNA molecule may be defined as a molecule that comprises the biological instructions that construct each species unique in terms of genetic sequences.

The nucleotide bases are always bound to each other in a complementary form, i.e. A is bonded to T with the help of two hydrogen bonds, while C is bonded to G with the help of three hydrogen bonds.

Apart from this, according to Chargaff's rule, the amount of adenine is always equal to the amount of thymine, while the amount of guanine is always equal to the amount of cytosine.

Therefore, it is well described above.

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i can't focus please help me

Answers

Explanation:

1) The male frogs croak to attract mates. They can also visually attract females by displaying vibrant colors. They compete by comparing who calls louder

2) This aids in survival because this ensures that only healthy frogs get to pass down their genes. Unhealthy frogs will not be selected by females. This is called sexual dimorphism

3) The hummingbird displays its impressive tails which they move around to attract females. They may perform aggressive movements against other competing males.

4) These strategies are very important to maintain a diverse and healthy population in a community of animals.

Who is known as the father of Natural selection?

Answers

Answer:

Darwin's theory.

Explanation:

An image of all the chromosomes in a cell is often used to diagnose chromosome all disorder such as a normal numbers of chromosomes. This image is referred to as a what?
A. Karyotype
B. Phenotype
C. Trait
D. Genotype

Answers

B. Phenotype
I guess I learned that in term 1 I dont really remeber but I guess

Please answer this, ITS IMPORTANT AND I NEED ASAP!!!

Answers

Answer:

Chromosomes contain genes, which help to determine an organism's traits. Genes come in alternate forms called alleles. The actual gene combination that an organism receives from its parents is called its genotype, while the trait that gets expressed as a result is referred to as its phenotype. If an offspring receives the same type of allele for a given gene from each parent, it is said to be h o m o z y g o u s. If the alleles differ, it is h e t e r o z y g o u s.

Explanation:

Which best explains why all of the Earth’s freshwater is not available for human use?

Answers

Answer:

2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost.

Explanation:

99% of liquid freshwater on Earth is Stored as Ground water

Much of it probably isn't accessible to us Human.

About 71 % of Earth is covered in water, and the Ocean holds most of it but this is salt water, almost all fresh water is stored underground

how does carbon dioxide react with starch in plants?

Answers

Answer:

Higher concentrations of carbon dioxide make plants more productive because photosynthesis relies on using the sun's energy to synthesise sugar out of carbon dioxide and water. Plants and ecosystems use the sugar both as an energy source and as the basic building block for growth.

Why do green plants require solar energy?​

Answers

Answer:

Plants use sunlight to create the energy they need to grow and live. This process is called photosynthesis. Photosynthesis is the process that green plants and some bacteria use to convert or change light energy into chemical energy. ... Plants also need carbon dioxide and water for photosynthesis.

Explanation:

ik this was awnsered but i need points

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