A scientist has been studying the amount of fresh water stored in polar ice caps for many years. He believes that one of the ice sheets in Antarctica is getting smaller.
​What kind of data should the scientist collect to determine if the ice sheet is changing size?
A
Measure how deep the ice is for a few months.
B
Measure how much area and how thick the ice is over several years.
C
Measure the mass of the ice for a few weeks.
D
Measure how wide the ice is from satellite images for a few days. plz help its a test