Answer:
B
Explanation:
a sinkhole is the answer. I got it on edge 2020
Answer: Natural variation.
Answer:
<h2>Yes, mammals are more closely related to reptilia or birds </h2><h3>Hope it helps </h3>
By trapping heat, greenhouse gases contribute to our planet's warming. Because of its involvement in the Earth's carbon cycle and nitrogen cycle, the biosphere influences the amounts of some of the major greenhouse gases such as methane, carbon dioxide, and nitrous oxide.
