1 . When sunlight passes through tiny suspended rain drops it produces—
- A. Rainbow
- B. White light
- C. Ultraviolet ray
- D. None
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2 . Engineers are still typing to successfully ___ the power of sunlight for effecient production of electrycity.
- A. harness
- B. control
- C. generate
- D. regulate
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3 . Often visible as smog , ozone is formed in the atmosphere form" hydrocarbons and nitrogen oxides , two major pollutants emitted by automobiles react with sunlight .
- A. ozone is formed in the atmosphere from
- B. ozone is formed in the atmosphere when
- C. ozone is formed in the atmosphere when
- D. ozone is formed in the atmosphere ,and when
- D. None of them
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4 . Sunlight : photosynthesis :: Oxygen :?
- A. heart beat
- B. respirataion
- C. life
- D. blood vassel
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5 . Sunlight
- A. helps growth of bacterias
- B. impedes growth of algae
- C. increases dissolved oxygen content
- D. reduces turbidity.
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6 . Fungi do not absorb sunlight but use animals and plants ..... dead and living, as their source of food
- A. both
- B. besides
- C. together
- D. furthemore
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7 . Keep the plants ___ window so they get enough sunlight.
- A. infront
- B. beside
- C. near to
- D. in
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