Answer:
option a
Explanation:
because When hydrogen is used to power a fuel cell, the only byproducts are water and heat—no pollutants or greenhouse gases are produced.
Answer:
A plant gets energy from the sun (sunlight)
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen.
Answer:
waste of other animals,eating dead animals and plants
Answer:
D is the correct option
Explanation:
expansion of water is not significant over day night temperature
Answer:
C
Explanation:
Remember that a niche is an inhabited areas where organisms essentially behave a little like humans each filling their own individual role. These aren't extremely common to find but the whole concept of it is that these organisms will function peacefully and trying to help one another survive. C is correct because with minimal resources you will lose that sense of tranquility and now fight it out for who is the fittest for the environment
Hope this helps!
