How much water can the air hold when the relative humidity of the air is 25%?
a. no more water
b. twice as much water
c. four times as much water
d. eight times as much water

Which is a possible result of higher air temperatures caused by global warming? a. increase in sea level b. freezing of polar ice caps c. rapid evaporation of water in the soil d. flooding of low-lying coastal areas

In the late 1990s, brazil’s poor people protested about crowded cities land distribution mining permits industrial pollution

Due to its high humidity, the south often experiences severe storms with heavy rains called cyclones ,hurricanes, monsoons, tornadoes