Water and air both have oxygen and due to the contamination in the oxygen both water and air suffer
In the 31 countries at the bottom of the list, 28 of which are in sub-Saharan Africa, a person can hope to live on average only 46 years, or 32 years less than the average life expectancy in countries of advanced human development, with 20 years slashed off life expectancy due to HIV/AIDS.
Answer:they affect europe by destroying land and killing animals
Explanation:
All tropical cyclones form over the ocean.
Answer: Option B
<u>Explanation:</u>
The tropical cyclones form above the ocean. To form a cyclone, warm, moist air rises above the ocean and as it rises, it creates an area of lower air pressure and air of high pressure area is also shifted to areas of low pressure area which when rises form clouds. This whole system of cloud and wind spins together fed by ocean's heat and as it spins faster and faster it results in a cyclone forming an eye in the center.
