____________________ is a significant rise in extinction rates above the background level

Fill in the blanks with correct word


Mass extinction

Environmental & Atmospheric Sciences

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Capetown, in southwest Africa, is influenced by the ________ ocean current

A) Benguela B) North Atlantic Drift C) Mozambique D) Arctic Circumpolar

Environmental & Atmospheric Sciences

The most recent analyses of polar ice cores have given us the ability to profile global climate change back as far as ________ years

A) 300,000,000 B) 100,000 C) 1000 D) 800,000 E) 50,000

Environmental & Atmospheric Sciences

What is meant by the term sustain ability?

A. Food production is sustained by fertilizers. B. Soils are sustained by conservation measures. C. A system or process can be maintained for an indefinite period of time. D. Resources are replenished by geological processes.

Environmental & Atmospheric Sciences

Why is the 500-mb level chart important for forecasting?

A) It demonstrates cloud cover. B) It helps determine surface temperatures. C) It helps determine the appropriate rate of adiabatic cooling. D) The winds at the 500-mb level determine the direction of movement for weather systems.

Environmental & Atmospheric Sciences