Avolcanic eruption causes melting of glaciers. which of these earth systems interact during this event?
a atmosphere and biosphere
b atmosphere and hydrosphere
c geosphere and cryosphere
d geosphere and biosphere

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing

What factors (physical and biological) can affect the levels of dissolved oxygen in the gulf waters?

5. which of the following is not true about performing biological investigations? a. most scientists do not use the metric system or si. b. scientists are trained to conduct their investigations safely. c. the metric system and the revised si are based on multiples of 10. d. reading and understanding the steps before conducting an experiment is necessary for safety.