CSS Past PapersBREveryday Science 2009BR Test - 5

CSS Past PapersBREveryday Science 2009BR Test - 5

1. Which one of the following is a non-metallic mineral?

a) Manganese
b) Gypsum
c) Magnesium
d) Bauxite
e) None of these

2. Ozone layer prevents the following radiation from entering the atmosphere?

a) Infra-red
b) Gamma rays
c) X-rays
d) Ultraviolet
e) None of these

3. The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from?

a) Troposphere
b) Mesosphere
c) Stratosphere
d) Ionosphere
e) None of these

4. Yeast is used in making bread because it produces?

a) Sugar
b) Bacteria
c) Oxygen
d) None of these
e) Carbon dioxide

5. Oasis is associated with?

a) Fertile land
b) Desert
c) Glaciers
d) Volcanoes
e) Islands

6. Quartz crystal in quartz watches work on the principle called?

a) Photoelectric effect
b) Piezo-electric effect
c) None of these
d) Stark effect
e) Thermionic effect

7. The fruits without seed, like banana, are called?

a) parthenocarpic fruits
b) parthenogenesis fruits
c) placental fruits
d) Organic fruits
e) seedless fruits

8. Animal which captures and readily kills living animals for its food is called?

a) Predator
b) None of these
c) Scavenger
d) Parasite
e) Mammal

9. In a railway track, two rails are joined end to end with a gap tin between them because?

a) All of these
b) Steel can be saved
c) Accidents due to expansion in summer can be avoided
d) Air gaps are necessary for bearing the weight of running train
e) Accidents due to contraction in winter can be avoided

10. Name the famous book of Ibn-Sina in which he discussed human physiology and medicine?

a) Al-Qanoon (The Canon of Medicine)
b) New Renaissance
c) Tadhkira
d) None of these

e) Al-Masudi

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