Answer: A
Explanation:
Hot springs and geysers are tell tell signs of volcanic activity beneath the earths crust, i.e, the water is heated by the magma below it.
Answer: As the temperature increases, molecules move faster, then enzymes they speed up metabolism and cells rapidly increase in the size.
Explanation: do bacteria growth faster at a higher temperatures molecules move slower,and enzymes cannot mediate in chemical reactions,
Mobutu enriched himself by misusing borrowed money. (Gradpoint)
Equator. Because the altitude of Polaris matches the degrees of latitude
<u>Answer:
</u>
The build-up of three oxygen created our ozone layer around two billion years ago.
<u>Explanation:
</u>
- The ozone layer is a part of the stratosphere which is located right after the troposphere in the atmosphere of the Earth.
- The ozone gas is made up of the abundance of three oxygen molecules combining with the ultraviolet radiation emitted by the Sun.
- The development of the ozone layer happened around two billion years ago when the oxygen concentration levels on the planet began to rise slowly and gradually.
