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AnnZ [28]
3 years ago
6

Please help me!! Worth 30 points

Biology
1 answer:
alekssr [168]3 years ago
6 0

Answer: See below

Explanation:

Solar energy: Advantages: Solar energy is pollution free and causes no greenhouse gases to be emitted after installation. Disadvantages: Although solar energy can still be collected during cloudy and rainy days, the efficiency of the solar system drops.

Wind energy: Advantages: It doesn't pollute air like power plant relying on combustion of fossil fuel. Disadvantages: Wind turbines can be a threat to wildlife (e.g. birds, bats).

Hydroelectric energy: Advantages: Hydroelectric energy is fueled by water, so it's a clean fuel source, meaning it won't pollute the air like power plants that burn fossil fuels, such as coal or natural gas. Disadvantages: Electricity generation and energy prices are directly related to how much water is available. A drought could potentially affect this.

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Why does the sound of something moving away from you seem to change to a lower and lower pitch?
Oksana_A [137]

The answer is D the wave sound stretches out relative person starting still

4 0
4 years ago
<img src="https://tex.z-dn.net/?f=%5Ccolor%7Bpink%7D%7B%20%5Ccolorbox%7Byellow%7D%7B%5Ccolorbox%7Bwhite%7D%20%7Bquestion%7D%7D%7
LUCKY_DIMON [66]

Answer:

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

Explanation:

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar

3 0
3 years ago
Read 2 more answers
Do-Now:
nexus9112 [7]

Answer:

In the Claim, do not give evidence, just a short thing saying "I am right". In the evidence, don't explain just add links to articles or quotes, and then explain your claim and evidence together in your reasoning.

Explanation:

--

6 0
2 years ago
Is the image below balanced or unbalanced?
motikmotik

Answer:

Balanced

Explanation:

The image below is balanced because the forces are oppositely directed and have equal magnitudes.

  • Based on newtons first law of motion "a body will remain at rest or continue with uniform motion unless if it is acted upon by an external force".
  • The external force creates an unbalanced force resolution on a body.
  • For this body, a force of 5N acts to the left
  • A force of 5N acts to the right

When forces are directed this way;

 Resultant = 5N  - 5N  = 0N

A resultant force of 0N shows a balanced body.

6 0
3 years ago
Fish lay a large number of eggs, few of which are fertilized and very few of which hatch into young ones. Still fewer live to ma
vazorg [7]
The answer would be survival of the fittest.

This metaphor, "<em>survival of the fittest</em>," was used by Herbert Spencer to explain <em>natural selection. </em>It is sometimes also referred to as the survival for existence. This phrase came from the Dawinian theory of evolution where he explains that all species are capable of producing many offsprings. However, the survival of those offsprings depends on their ability to adapt to the risks and opportunities of the external environment. 
<em>
</em>This relates to your scenario in the sense that fish lay a lot of eggs in the beginning but not all of them would live to achieve maturity. This is because even as eggs, they have many predators and are exposed to other elements. The threat pushes on even if they are able to hatch and grow up. 
<em>
</em>
8 0
3 years ago
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