Which of the Following Systems Use(s) the Heliostats to Focus

question 15

Multiple Choice

Which of the following systems use(s) the heliostats to focus the Sun's energy on molten salt water for creating steam?
I. Solar power tower
II. Parabolic trough
III. Dish/engine

• A) I only
• B) II only
• C) I, II, and III
• D) I and II
• E) I and III

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The coloring of the skin caused by the presence of melanin, which can vary greatly among individuals and populations.