Answer:
A thin layer of gas called ozone high up in the atmosphere filters out these dangerous rays. The atmosphere also helps to sustain life of Earth. It provides oxygen for humans and animals to breathe, and carbon dioxide for plants.
Explanation:
The Industrial Revolution created a mass rural-urban migration
Answer:
- availability of birth control
- migration
- uncertainty about the future
Explanation:
Eastern Europe is a region that has a negative demographic trends. The population is going down, and there isn't a single country of this region that actually has a positive population growth. There are several reasons as to why this is happening. One of the main factors in the migration, as these countries are developing countries and they don't offer high wages and good living conditions, lot of people migrate in Western Europe and North America. Because the economy of these countries is not the best, the people are afraid about their future, so they choose to have one or two children tops, as they are not sure will they be able to afford to have more. The availability of the birth control also had its impact, as the women can be sexually active but not be afraid that they will get pregnant when they don't want to.
Answer:
e & h
Explanation:
The main reason that the subtropics at 30 degrees north and south of the equator contain deserts is because of
descending air that is part if a cell that originates at the equator
Answer:
Fast-moving lava can kill people and falling ash can make it hard for them to breathe. They can also die from famine, fires and earthquakes which can be related to volcanoes. People can lose their possessions as volcanoes can destroy houses, roads and fields
Explanation:
