they use natural selection because they got separated from their kind and have to make new living also they need to adapt to the environment
1). secondary; physical and thermal and radiological
2). primary; chemical radiological
3). secondary; physical and biological
A, the higher the temperature, the faster it moves right
<span>The tropical climate is found northward and southward from the equator to about 15 to 25° of latitude. </span><span>
In tropical climates, where strong insolation makes temperatures high, all that is needed for intense daily convectional storms is </span>a source of humidity. A<span>ll months have average temperatures greater than 18° Celsius.</span>
While a constant supply of freshwater happens by itself in natural streams, an aquarium is by definition, a closed system. So here, man has to help out in order to provide new..
