Directions: (Q.  1 - 7): Solve the following questions -

1. The pollutant responsible for ozone holes is _______.

(a) CO2
(b) SO2
(c) CO
(d) CFC

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2. One of the best solutions to get rid of non-biodegradable wastes is

(a) Burning
(b) Dumping
(c) Burying
(d) Recycling

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3. Vermicomposting is done by

(a) Fungus
(b) Bacteria
(c) Worms
(d) Animals

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4. If waste materials contaminate the source of drinking water, which of the following diseases will spread?

(a) Scurvy
(b) Typhoid
(c) Malaria
(d) Anaemia

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5. India exports power to ______.

(a) Bangladesh
(b) Myanmar
(c) Pakistan
(d) Bhutan

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6. The alkaloid naturally found in coffee, cocoa and cola nut is

(a) Cocaine
(b) Morphine
(c) Tannin
(d) Caffeine

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7. Which vein brings clean blood from the lungs into the heart?

(a) Renal Vein
(b) Pulmonary Vein
(c) Vena Cava
(d) Hepatic Vein

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