The temperature is falling sharply on a clear, calm night in the deserts outside of las vegas, nevada. around 3 am local time, a layer of mid-level clouds moves overhead. explain why the temperature decrease was slowed once the clouds moved in.

Soweto was the site of one of the that swept across south africa in the late 1970s. in his effort to end apartheid, desmond tutu turned to . the united states responded to south africa’s apartheid policy in the 1980s by .

In a scientific experiment, a is any factor that can be changed or be changed

Which statement explains what upwelling causes? a. upwelling causes tides to rise and fall. b. upwelling causes changes in the direction of currents. c. upwelling causes nutrients, minerals, and tiny organisms to rise. d. upwelling causes currents in the pacific ocean to change direction. i think the answer is c.