The sum of mass of living beings, mostly plants, in a given place at a particular time is called ________
Fill in the blank(s) with correct word
biomass
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If you eat metallic sodium or inhale chlorine gas, you stand a strong chance of dying. Let these two elements react with each other, however, and you can safely sprinkle the compound on your popcorn for better taste. What is going on?
A. Sodium chloride has nothing in common with sodium and chlorine. B. All elements are inherently dangerous. C. Sodium and chlorine from the elemental form is more concentrated than the sodium and chlorine we get from sodium chloride. D. After these two elements react, they lose the potential energy to cause harm.
How did ichthyosaurs and plesiosaurs differ?
A)Ichthyosaurs were able to travel onto the land. B)Ichthyosaur females probably gave birth to live young. C)Plesiosaur females probably gave birth to live young. D)Plesiosaurs were adapted only to the aquatic environment. E)Ichthyosaurs ate fish and plesiosaurs did not.
?Mountain glaciers play a vital role in the water cycle by storing water as ice during cold seasons and releasing it slowly to streams during warmer seasons.
Answer the following statement true (T) or false (F)
Based on human-induced changes to the atmosphere, some have tentatively labeled the Earth's next atmosphere the
A) living atmosphere. B) modern atmosphere. C) ozonosphere. D) anthropogenic atmosphere. E) pollution sphere.