the ____________ is the thin layer of earths atmosphere where life exists
A geosphere
b atmosphere
c biosphere
d hydrosphere
c biosphere
The correct answer is c) biosphere.
The answer to the question is c) biosphere.
To arrive at this answer, we can break down the question by looking at each option:
a) Geosphere: The geosphere refers to the solid parts of the Earth, such as the crust, mantle, and core. It does not include the atmosphere where life exists.
b) Atmosphere: The atmosphere is a layer of gases surrounding the Earth. While it is essential for supporting life on Earth, it alone does not qualify as the specific layer where life exists.
c) Biosphere: The biosphere is the correct answer. It comprises all the regions of Earth where living organisms can be found, including the atmosphere, land, and bodies of water. The biosphere encompasses the interactions between living organisms and their environment, making it the layer where life exists.
d) Hydrosphere: The hydrosphere consists of all water on Earth, including oceans, lakes, rivers, groundwater, and even water vapor in the atmosphere. While water is vital for life, the hydrosphere alone does not represent the thin layer of Earth's atmosphere where life exists.
Therefore, the correct option is c) biosphere.