Every Place on Earth Receives the Same Number of Hours

question 14

Multiple Choice

Every place on Earth receives the same number of hours of sunlight each year-an average of 12 hours per day. Why do different areas of the Earth receive different amounts of solar radiation?

• A) The height of the place above sea level is an important determinant of the amount of solar energy received.
• B) The density of the vegetation affects how much solar radiation a place will receive-the more grassland, the less solar radiation.
• C) The angle of the sunlight is an important determinant of the amount of solar energy received.
• D) The density of the vegetation affects how much solar radiation a place will receive-the more tall trees, the less solar radiation.
• E) Because of the curvature of the Earth, winds of the upper stratosphere can blow solar radiation away from an area before it reaches the ground.

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Definitions:

H1N1

A subtype of influenza A virus known to cause respiratory infections in humans; it was responsible for the 2009 flu pandemic.

Pandemic

A global outbreak of a disease that affects a large number of people across several countries or continents.

Oxygen

A chemical element vital for respiration in living organisms and necessary for combustion, represented by the symbol O.

Tissues

Collections of similar cells that perform specific functions within an organism, such as muscle tissue or nervous tissue.