All layers are incredibly important. If we didn't, we would die very quickly and life would be inhabitable. The radiation from the son would kill us. The heat from the sun would dry up water and kill crops leaving us with no food/water.
Answer:
B. limiting families to only one child
Continental/Continental: The Himalayas. The Himalayan mountain range and Tibetan plateau have formed as a result of the collision between the Indian Plate and Eurasian Plate which began 50 million years ago and continues today.
It is the winter solstice, during this day we have the shortest amount of daylight in the whole year.
hope this helps!
I'm pretty sure that it is oil because that is what most of the countries over there use it, making it a trend.