The universe is presently contracting

a. True
b. False


False

Environmental & Atmospheric Sciences

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Earth's early atmosphere

A. consisted mainly of methane and ammonia. B. was similar in composition to the present atmosphere. C. consisted mainly of sulfur gases. D. contained little or no oxygen.

Environmental & Atmospheric Sciences

In middle latitude (temperate) oceans, primary productivity is limited by ________ in the fall and by ________ in the spring

A) available sunlight; available sunlight B) available sunlight; nutrient supply C) nutrient supply; available sunlight D) nutrient supply; nutrient supply

Environmental & Atmospheric Sciences

When a windmill turns to generate electricity, the amount of kinetic energy input in the process ________

A) is greater than the amount of electrical energy produced B) is less than the amount of electrical energy produced C) is unrelated to the amount of electrical energy produced D) equals the amount of electrical energy produced

Environmental & Atmospheric Sciences

Bree dips a pair of prongs onto a water surface to produce waves. When she dips less frequently the resulting waves

A. have longer wavelengths. B. move slower. C. have shorter wavelengths. D. remain the same in wavelength.

Environmental & Atmospheric Sciences