The summer solstice is the first day of summer. This day, June 21, is the longest day of the year.
The correct answer is: A. A change in a cell's genetic material.
Mutations occur in DNA as a result of mistakes during the DNA replication (when repair mechanisms don’t fix it) or as the result of environmental factors (e.g. UV light). Mutations can have positive impact, by increasing the genetic variation or can have negative effect, causing the diseases or cancer.
I'm not sure but think its A
Yes, because if you're close to the sea then you will be in a warmer climate. and Ocean currents affect climate in a way similar to winds. Ocean currents move water around the ocean. Warm water currents are currents that move water away from the equator, and cold water currents are currents that move water away from the poles.
Places that are near warm water currents will have a warmer climate.Places that are near cold water currents will have a colder climate.
