which of earths speres contains most of its mass?

A) atmosphere
B) hydrosphere
C) geosphere
D) biosphere

I think its C (geosphere)

You're correct.

thanks

You are correct! The sphere that contains most of Earth's mass is the geosphere (option C). To explain why, let's break down the composition of each sphere:

A) Atmosphere: This sphere consists of the layer of gases that surround our planet. While the atmosphere is essential for supporting life and weather patterns, it constitutes a relatively small portion of Earth's overall mass compared to the other options.

B) Hydrosphere: The hydrosphere encompasses all the water on Earth, including oceans, lakes, rivers, groundwater, and even water vapor in the atmosphere. Water is abundant on our planet, but its mass is still smaller compared to the geosphere.

C) Geosphere: The geosphere refers to the solid Earth, including the rocks, minerals, and the inner layers - the crust, mantle, and core. This sphere constitutes the majority of Earth's mass since it includes the massive landforms, mountains, and the dense materials in the core.

D) Biosphere: The biosphere comprises all living organisms on Earth, including plants, animals, and microorganisms. While it is diverse and contains an incredible amount of life, the mass of living organisms is small when compared to the other spheres.

Therefore, the geosphere (option C) is the sphere that contains most of Earth's mass. Well done!