Answer:
crust lower mantle and upper mantle
Explanation:
Answer:
were introduced into American geography in the 1920s by Carl Sauer
Answer:earth
Explanation:
Setting up the seasons. The direction of Earth's revolution is in the direction of its rotation. Because the path around the sun is not circular, we are closer to the sun at certain time of the year.
The correct answer is - ozone.
The ozone is essentially three molecules of oxygen, or O³. This gas is crucial for the life on the Earth because it is the one that manages to filter out big portion of the UV radiation from the Sun which is extremely harmful if its too strong, as it will contribute to the dying out of pretty much every living organism.
While the ozone layer in the stratosphere is very useful, the ozone in the lower parts of the troposphere is actually considered as pollutant. The reason why it is considered as pollutant is because it is very harmful if inhaled, and it also heavily damages the plants.
Answer: African environmental issues are caused by anthropogenic effects on the African natural environment and have major impacts on humans and nearly all forms of endemic life. Issues include desertification, problems with access to safe water supply, population explosion and fauna depletion.
Explanation: Hope it helps
