Ascientific theory
a) is the scientific community’s best explanation for certain observable facts
b) describes an observed pattern in nature without attempting to explain it
c) is an attempt to explain how or why things happen in the manner observed

A). is the scientific community's best explanation for certain observable facts.

Explanation:

A scientific theory can be define as the proposed explanation for the cause of a natural phenomena or natural event. The explanation by scientific community includes the results of direct observations and scientific experimentation procedures.

i also need this answer for on a project, does anyone know the answer? ?

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.