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Environmental Science MCQs

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Practice free Environmental Science multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 937 questions — no login required.

Question 1hard

Water vapour is:

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Question 2hard

What is the cause of the Exxon Valdez?

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Question 3hard

In calm air the air temperature is -10o C, if the wind speed should increase to 30 knots (with no change in air temperature) the thermometer would indicate:

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Question 4hard

Infrared and visible satellite images might provide:

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Question 5hard

At what time of day is the relative humidity normally at a minimum?

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Question 6hard

The atmospheric greenhouse effect is produced mainly by the:

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Question 7hard

The blueness of the sky is mainly due to: