How much does the sun's cycle influence overall temperature on earth?

What do heterotrophic cells need to survive?

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )