Question 2
For an object to remain at rest, which of the following must be true?

A. The forces on it are balanced

B. There is no friction

C. Gravity doesn’t act on it

D. The object has no mass

Ribonuclease activity is a type of nuclease that catalyzes the degradation of rna into small components.

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.