What determines how a common trait is in any population?

A common trait is determined by DNA and/or genes

Explanation:

Whether or not a trait is common has to do with how many versions of that gene are in the population. It has barely anything to do with if the trait is dominant or recessive.

a warm, wet climate will produce the highest rate of weathering. the warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering (figure below). this happens because plants and bacteria grow and multiply faster in warmer temperatures.

the dark variety, as they are not visible on the dark tree barks

explanation: