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ماحولیاتی کیمیا: فضا

دسویں جماعت · کیمیا · 5 سوالات

نام: ____________________   تاریخ: ____________

  1. The most abundant gas in the atmosphere is:

    • A Oxygen
    • B Nitrogen
    • C Argon
    • D Carbon dioxide

  2. The gas mainly responsible for the greenhouse effect from burning fuels is:

    • A Oxygen
    • B Helium
    • C Carbon dioxide
    • D Nitrogen

  3. Acid rain is caused mainly by oxides of:

    • A Hydrogen
    • B Noble gases
    • C Sulphur and nitrogen
    • D Carbon only

  4. The ozone layer protects us from:

    • A Ultraviolet radiation
    • B Infrared radiation
    • C Sound
    • D Radio waves

  5. CFCs are harmful because they:

    • A Cool the Earth
    • B Make rain acidic
    • C Increase oxygen
    • D Deplete the ozone layer

جوابی کلید

1. B, 2. C, 3. C, 4. A, 5. D

  1. Nitrogen makes up about 78 percent of air.

  2. Carbon dioxide traps heat in the atmosphere.

  3. Sulphur dioxide and nitrogen oxides dissolve in rain to form acids.

  4. Ozone absorbs harmful ultraviolet radiation from the Sun.

  5. CFCs release chlorine that breaks down ozone.