Answer:
There are four categories for air masses: arctic, tropical, polar and equatorial. Arctic air masses form in the Arctic region and are very cold.
<span>An atom that has gained or lost electrons is called an ion</span>
Answer:
H2O description is that it moves through the ground.
Explanation:
Water moves through any small pockets.
The outer skeleton provides protection due to the fact that invertebrates do not have backbones
C. decomposer
C. from other organisms
