Answer:
An astronaut visited Mars. His weight on Earth was 180 pounds
Explanation:
1.4 pounds
c.
6.4 pounds
b.
4 pounds
d.
40 pounds
The answer would have to be A) because cold air is dense so it is able to quickly plow a warm air mass ahead of it.
Longitudinal studies make comparisons over time, whereas cross-sectional studies make comparisons at a single point in time. hope that helps some
