Which of the following is not one of the main areas of earth science

Anthropology is not one of the main areas of Earth Science.

Explanation:

The main areas of Earth Science are meteorology, oceanography, geology, and astronomy.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error