Answer:
Two possible reasons for the massive extinction at the end of the Paleozoic Era are an asteroid collision and massive volcanic eruptions.
Explanation:
The massive extinction that occurred at the end of the Paleozoic Era is the biggest extinction from what is known so far. The majority of the species died out, and whole families of animals and plants were wiped out of the face of the Earth. It was only small and highly adaptable organisms that managed to survive and give rise to the later life-forms.
The two possible reasons for this massive extinction are an asteroid impact and massive volcanic eruptions. An asteroid collision would have created drastic changes in a matter of minutes and hours, with effects lasting for a long period of time, thus eliminating the majority of the life. Massive volcanic eruptions, with the Siberian super-volcano being the prime candidate, may have caused enormous amounts of carbon dioxide and sulfur dioxide to end up in the atmosphere, thus rapidly changing the living conditions on the planet.
Answer:
apartheid - racial segregation
colonization - the taking control of an area by a foreign government
corruption - dishonesty, openness to bribery
desalinization - salt removal
desertification - a change that makes a place drier
globalization - the integration of world economies or cultures
Answer:
I believe its D
Explanation:
To increase the effectiveness of an employee in performing a specific task.
Answer:
C. creating new habitats for land animals that fill niches at lower altitudes and warmer temperatures.
Explanation:
because they will have change of environment
Answer:
this is true
Explanation:
the desert the plains and swamps are all ecoystems
