<span>Scientists choose where are units of time began and ended based on major changes in life forms at certain times</span>
<span>Field research or fieldwork is the collection of information does not take a place laboratory. library or workplace setting. The approaches and methods used in field research vary across disciplines. For example, biologists who conduct field research may simply observe animals interacting with their environments, whereas social scientists conducting field research may interview or observe people in their natural environments to learn their languages, folklore, and social structures.</span>
I think it's c I do t really know sorry if it is wrong
Answer:
Earth Grows Warmer
Explanation:
If the imbalance is positive and more energy enters the system than exits, Earth grows warmer. If the imbalance is negative, the planet grows cooler.