Which country do u think is the worst county u know

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Which part of a mountain receives the majority of moisture due to the rain shadow effect? a. the leeward side b. the windward side c. the bottom of the mountain d. all parts of the mountain receive equal amounts of moisture.

How can minerals crystallize from materials dissolved in water? check all that apply.