Ask Question
14 November, 03:27

Earth is a closed system. that means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on earth ___. so it is essential that bio geochemical cycles __ these materials as they move through earths subsystems

A: remains constant. can increase. can decrease.

B: destroy. create. renew.

+4
Answers (1)
  1. 14 November, 03:38
    0
    The Earth is a "closed system" which means that the amount of rocks, carbon, metals, nitrogen, water and oxygen on earth remains constant. So it is essential that "biogeochemical cycles renew these materials" as they move through the Earth's subsystems.

    Explanation:

    The Earth's only source of extra-planetary energy is the Solar radiations received by Earth. The biogeochemical cycles on the planet are responsible for processing the same old rocks, metals, carbon, nitrogen, oxygen, water, and other abiotic substances on Earth in order to naturally renew them and make them available for reuse. No naturally occurring element on Earth is newly produced. It is only renewed through biogeochemical processes.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Earth is a closed system. that means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on earth ___. so it is essential that ...” in 📗 Geography if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers