Scientific theories are usually A.
unable to change as new data or technology emerges.
B.
supported by evidence and widely accepted by the community.
C.
based on opinions and feelings.
D.
claims posed by individuals.

B

Explanation:

Cuz they are supported once discovered and then widely spread then accepted

B.

Explanation:

A scientific theory is a broad explanation that is widely accepted because it is supported by a great deal of evidence. Because it is so well supported, a scientific theory has a very good chance of being a correct explanation for events in nature. Because it is a broad explanation, it can explain many observations and pieces of evidence. In other words, it can help connect and make sense of many phenomena in the natural world.

it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.