Ascientist wishes to learn about volcanoes and earthquakes. which of the following spheres should she most directly study?

a. atmosphere

b. biosphere

c. cryosphere

d. geosphere

Option D, Geosphere

Explanation:

Geosphere is the of earth which comprises of various rock forms, geological process , rocky structures and all earthy components and processes that have shaped the present land form of this planet. Hence, earth's geosphere also comprises of both volcanoes and earthquakes. Therefore , the scientist must study the geosphere of earth.

Earth's atmosphere comprises of all gases and air.

Earth's biosphere comprises all living component on this planet

Earth's cyrosphere comprises of  frozen water regions

Thus, option D is correct

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.