Class 10 Chemistry MCQs – Practice Test 1 (Chapter 6)

Environmental Chemistry I Atmosphere MCQs with Answers PDF Download – Test 1

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Environmental Chemistry I Atmosphere MCQs – Practice Test 1 PDF Download

MCQ 1: How much cooler does the air get for every 1 km increase in altitude in the troposphere?

2 degrees
6.5 degrees
8 degrees
10 degrees

MCQ 2: Which of the following is produced when electrical discharges pass through oxygen in the air?

chlorofluorocarbons
methane
ozone
lead compounds

MCQ 3: What is the source of lead compounds?

aerosol sprays foams
exhaust fumes of motor vehicles
incomplete burning of wood
none of above

MCQ 4: The atmosphere is divided into how many layers?

two
three
four
five

MCQ 5: How much higher can be the temperature inside a greenhouse as compared to the outside?

20 °C higher
10 °C to 15 °C higher
5 °C higher
25 °C higher

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