Which of the Following Is True of the Biosphere

question 60

Multiple Choice

Which of the following is true of the biosphere?

• A)It includes Earth's crust and a portion of the upper mantle.
• B)It exists on other planets in the solar system.
• C)It is not connected to the overlapping inorganic spheres.
• D)It extends from the floor of the oceans to 8 km (5 mi. )into the atmosphere.
• E)It encompasses all of Earth's water,including that in the atmosphere and subsurface.

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Definitions:

Water Boils

The transformation of water from liquid to gas phase, occurring at 100°C (212°F) at sea level.

Hydrogen Ions

Positively charged atoms of hydrogen, which contribute to acidity when present in high concentrations in solutions.

Acids

Substances that release hydrogen ions (H+) when dissolved in water, typically having a sour taste and capable of turning blue litmus paper red.

Bases

Chemical substances that can accept hydrogen ions (H+) and are characterized by a pH greater than 7 when dissolved in water.