Answer:
Climate change
Explanation:
A group of change in climate system that is persistent for up to 30 years is called Climate change
Answer:
the answer is C
Explanation:
There are hundreds of ethnic groups, but only a few languages are spoken.
Answer: galaxies
Explanation:
Many factors have contributed to increase in life expectancy. Examples such as medical advancements in modern medicine, less wars being fought, improvement in sanitation, eating a healthy diet, a overall healthier lifestyle (for example, people don’t smoke cigarettes as much as the olden days) and easier access to education.
Answer:
The two mountains ranges are the Alpa and the Pyrenees.