Regulating ecosystem services are ways that ecosystems control important conditions and/or processes such as ________

A) soil formation and nutrient cycles
B) aesthetic beauty and recreation
C) pollination and chlorophyll
D) climate, water flow, and disease
E) food, water, and fiber


D

Environmental & Atmospheric Sciences

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The Appalachian Mountains were formed when ________ and ________ collided more than 250 million years ago

A) North America; Africa B) Africa; Europe C) South America; Africa D) Australia; Asia

Environmental & Atmospheric Sciences

Around the world, most major cities are situated ________

A) on the more northern continents B) near mountains, usually in a valley C) at elevations above 500 m. D) along rivers, oceans, roads, or train routes E) in agricultural areas

Environmental & Atmospheric Sciences

Of all the following processes which one increases the salinity of water?

A) Precipitation B) Runoff C) Icebergs melting D) Evaporation E) Sea ice melting

Environmental & Atmospheric Sciences

Due to changes in the intensity and amount of ____, polar climates are found at high latitudes and tropical climates at low latitudes

a. ?temperatures b. ?precipitation c. ?photosynthesis d. ?solar energy e. ?evaporation

Environmental & Atmospheric Sciences