The answer would be the 4th option. (Rainwater soaking into the ground). Soil erosion is commonly caused by rainwater soaking into the ground.
As of 2010, the two countries that are exceeding 1 billion people are China and India. This are by far the two most populated countries in the world, combined, they make around 1/3 of the world's total population. Even with the law that forbid the Chinese to have more then one child, that lasted few decades, their number still managed to grow (mainly because the law was not so strict in the rural areas). India, on the other hand, has very big fertility rate, there's no laws that restrict the number of children a family can have, and with this rate it's just matter of time when will India take over the number one place, as the world's most populated country.
1. neither is pushed under the other.
The most amount of seismic activity occurs in the interior of the continental plates. :D
Answer:
Kazakhstan, has serious environmental issues such as radiation from nuclear testing sites, the shrinking of the Aral sea, and desertification of former agricultural land. These issues are due in large part to Kazakhstan's years under the Soviet Union.
Explanation:
