1. in addition to being necessary for respiration, also provides uv radiation protection.

Atomicity occurs to prevent updates of the database occurring only partially, which can cause greater problems than rejecting the whole series outright.some are monatomic, diatomic, triatomic etc because it shows the number of atoms. for example, monatomic means it contains only one atom.

Decomposition is the cycle at which bacteria breaks down any organic material into the soil