Question

which of the following is part of the biosphere?
grains of sand rivers and streams
birds, fish, and reptiles nitrogen and oxygen gas

Explanation:

The biosphere consists of all living organisms on Earth. Grains of sand are non - living (geosphere - related), rivers and streams are part of the hydrosphere, and nitrogen and oxygen gas are part of the atmosphere. Birds, fish, and reptiles are living organisms, so they are part of the biosphere.

Answer:

birds, fish, and reptiles