Answer:
first and third one
Explanation:
animals need the oxygen they make. and animals eat the plants. if an animal doesnt eat plants it eats somthing that does. sorry for the typos.
The answer is B.) animals at the end of the food chain would not get enough food to stay alive.
Answer:
Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules. The energy used to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as cellular respiration.
Explanation:
running water can be used as an energy source to produce hydroelectric power.
Nuclear power plants have a rare type of uranium and uranium is a non renewable resource