Fish, Arthropods, Amphibians, and Reptiles all evolved during the Paleozoic Era.
Hope this Helps!
A narrow valley between hills or mountains, typically with steep rocky walls and a stream running through it.
Explanation:
1. Change of the state of water as the temperature is increased or decreased -
- As the temperature of water is increased , the liquid state changes to gaseous state .
- As the temperature of water is decreased , the liquid state changes to solid state .
2.
Greenhouse effect -
It is the process by which the the radiations of the sun get trapped in the atmosphere of the Earth , and increases the temperature of the surface of the planet , and thereby avoiding the situation of the freeing of the Earth's surface .
The two main and important greenhouse gases are - Carbon dioxide , methane , etc .
The type of air mass produces cold dry air is the continental polar air mass
<h3>What are continental polar air mass?</h3>
Continental polar air mass are the masses that are known for the coldness or dryness due to the region of the continental source.
These continental polar airmass is the one that produced cold dry air developing over the northern Canada.
Learn more continental polar air mass here: brainly.com/question/26281172
#SPJ12
