Which of the earth’s spheres is made up of all living things? a. the atmosphere b. the biosphere c. the lithosphere d. the hydrosphere

The biosphere, or B.

The atmosphere is basically the air, sky, clouds, etc.

The hydrosphere is made up of bodies of water like oceans, lakes, etc.

The lithosphere, if I remember correctly, is made up by the upper mantle and crust of the earth.

The "bio" in "biosphere" means life. It's the sphere made up of all living things. So the correct answer should be B! :)

Answermaritime tropical;

Conditions are more like living on  land  for creatures in the upper part of the intertidal, which is only covered with  water  at extreme high tide, so life is easier on land. conditions are more like living in the ocean for creatures in the lower part of the intertidal which is only exposed to air at extreme low tide. so basically it both worlds of land and ocean.