What do you call the living part of an environment?
a. abiotic
b. ecosystem
c. population
d. biotic

B. Ecosystem.

Ecosystems contain all living organisms on Earth

The answer is a if u read the definition it makes sense

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.