The answer is the second
one.
Deforestation of rain and forests and other parts of the world volcanic eruptions and widespread forest fires.
This activity has contributed greatest amount of carbon dioxide into the atmosphere over the past 100 years.
Im going to go with Margin.
<span>Scientists record the size and number of impact craters and how eroded they are to determine the ages and histories of different planetary surfaces.Older surfaces have been exposed to impacting bodies (meteoroids, asteroids, and comets) for a longer period of time than younger surfaces. Therefore, older surfaces have more impact craters. </span>
In regions where the sun's rays hit at an angle, solar energy is less than the region which is exposed to direct sun rays and the climate is cold.
- here the slanting sun rays fall on the frigid zone.
- the frigid zone receives slanting ray due to The higher the latitude, the less is the angle that the sun's rays make with the surface of the earth. Hence , the polar regions ( frigid zone ) receive slanting rays of the Sun.
- on the other hand The Tropical zone gets vertical rays of the sun, while temperate and polar zones receive slanting rays of the sun.
- North and South poles get more slanted sun rays. The axis of the earth is not straight, it is tilted in the angle of approximately 23.5°.
- The more slanted the sun's rays are, the longer they travel through the atmosphere, becoming more scattered and diffuse and due to low heating the region becomes cold .
to know more about frigid zone click here
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