GENERAL EDUCATION

GENERAL EDUCATION

EARTH SCIENCE, NATURAL SCIENCE 2, GENERAL SCIENCE LET REVIEW 

NATURAL SCIENCE 02

PRACTICE TESTS

1) A "shooting star" is really a ________ passing through the Earth's atmosphere.
a. collection of dark matter
b. ball of burning gases
c. meteoroid
d. dense patch of solar wind

2) What is the purpose of sphygmomanometer?
a. To measure blood pressure
b. To measure hypertension
c. To measure body temperature
d. To measure heart beat

3) The amazon river flows into which body of water?
a. The Atlantic Ocean
b. Lake Huron
c. The Pacific Ocean
d. The Ionian sea

4) The Great Victoria Desert is located in which country?
a. USA
b. Egypt
c. Australia
d. Mexico

5) Which of the following is NOT a type of forest?
a. Tropical dry
b. Aqueous arboreal
c. Sparse tress and parkland
d. Temperate needleleaf

6) Taiga forests are characterized by which type of trees?
a. Maidenhairs
b. Coniferous
c. Deciduous
d. Cycads

7) What is the largest desert in South America?
a. The Inexistente Desert
b. The Patagonian Desert
c. The Monte Desert
d. The Peruvian Desert

8) All of the following are types of flatlands that are NOT called plains, EXCEPT:
a. Playas
b. Marshes
c. Steppes
d. Swamps

9) The Gobi Desert lies on the border of which two countries?
a. China and India
b. Russia and Kazakhstan
c. Mongolia and China
d. India and Pakistan

10) At what speed does the Earth travel as it orbits the sun?
a. 60 km/s
b. 50 km/s
c. 30 km/s
d. 70 km/s

11) What is the most abundant gas in our atmosphere?
a. Nitrogen
b. Helium
c. Hydrogen
d. Argon

12) What is the average diameter of the Earth?
a. 57,341 km
b. 20,489 km
c. 6,530 km
d. 12,742 km

13) Lake Baikal can be found in which country?
a. Russia
b. China
c. Bangladesh
d. Romania

14) The ozone layer is located in which level of the atmosphere?
a. Exosphere
b. Mesosphere
c. Stratosphere
d. Troposphere

15) The solar terminator or twilight zone refers to what?
a. an asteroid belt
b. a dense band of dark matter
c. the line between day and night
d. the edge of a black hole

16) Which effect causes the sky to appear blue to us?
a. The Coriolis Effect
b. The Greenhouse Effect
c. Rayleigh Scattering
d. The Placebo Effect

17) Approximately how old is the planet Earth?
a. 4.5 billion years
b. 65.4 billion years
c. 1.2 trillion years
d. 769 million years

18) On what date each year is the Earth closest to the Sun, also referred to as the Earth's perihelion?
a. August 8th
b. January 3rd
c. December 30th
d. June 11th

19) Robert Edwin Peary claimed to be the first person to reach what location?
a. The Moon
b. The North Pole
c. The Marianas Trench
d. The Summit of Mount Everest

20) In August 1500, Diogo Dias discovered an island that he named St. Lawrence. Today that island is called ________.
a. Hawaii
b. Cuba
c. Greenland
d. Madagascar

21) The consumption of beef is strictly forbidden by:
a. Judaism
b. Islam
c. Hinduism
d. Catholicism

22) Washing soda is the common name for
a. Sodium carbonate 
b. Calcium bicarbonate 
c. Sodium bicarbonate 
d. Calcium carbonate

23) The hardest substance available on earth is
a. Gold 
b. Iron 
c. Diamond 
d. Platinum

24) Reading of a barometer going down is an indication of?
a. snow 
b. storm 
c. intense heat 
d. rainfall

25) A chronometer measures:
a. color contrast 
b. sound waves 
c. time 
d. water waves

26) Fathom is the unit of
a. sound 
b. depth 
c. frequency 
d. distance

27) Nuclear fission is caused by the impact of
a. neutron 
b. proton 
c. deuteron 
d. electron

28) When a gas is turned into a liquid, the process is called 
a. condensation
b. evaporation
c. deposition
d. sublimation

29) Which of the following parts of the sun is easily visible only during a total solar eclipse? 
a. core
b. photosphere
c. sunspots
d. corona

30) The fastest-running terrestrial animal is 
a. cheetah
b. lion
c. man
d. jaguar

31) Which prefix is often used with scientific terms to indicate that something is the same, equal or constant? 
a. iso
b. mega
c. meta
d. quasi

32) Cystitis is the infection of which of the following? 
a. liver
b. urinary bladder
c. pancreas
d. lung

33) Yeast, used in making bread is a ________.
a. fungus
b. plant
c. bacteria
d. seed

34) Titan is the largest natural satellite of planet? 
a. Mercury
b. Venus
c. Saturn
d. Neptune

35) The marine animal called dugong which is vulnerable to extinction is a/an:
a. Amphibian
b. Bony fish
c. Shark
d. Mammal

36) The disease diphtheria affects _________.
a. Lungs
b. Intestine
c. Throat
d. Body joints

37) The animal which uses sounds as its 'eyes' is? 
a. Dog
b. Cat
c. Snake
d. Bat

38) Silk is produced by 
a. Egg of silkworm
b. Pupa of silkworm
c. Larva of silkworm
d. Insect itself

39) Which one of the following is a water soluble vitamin? 
a. Vitamin A
b. Vitamin C
c. Vitamin D
d. Vitamin K

40) Which of the following planets rotates clock wise? 
a. Mars
b. Jupiter
c. Venus
d. Mercury

41) Water boils at a lower temperature on the hills because?
a. It is cold on the hills
b. There is less carbon dioxide on the hills
c. There is a decrease in air pressure on the hills
d. There is less oxygen

42) In the human body, Cowper’s glands form a part of which one of the following? 
a. Digestive system
b. Endocrine system
c. Reproductive system
d. Nervous system

43) In normal adult human, what is the rate of heartbeat per minute? 
a. 72-80
b. 70-75
c. 80-97
d. 82-87

43) The weight of an object will be minimum when it is placed at 
a. The North Pole
b. The South Pole
c. The Equator
d. The center of the Earth

44) Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity? 
a. They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency.
b. They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy.
c. They neutralize the free radicals produced in the body during metabolism.
d. They activate certain genes in the cells of the body and help delay the ageing.

45) The 2004 Tsunami made people realize that mangroves can serve as a reliable safety hedge against coastal calamities. How do mangroves function as a safety hedge? 
a. The mangrove swamps separate the human settlements from the sea by a wide zone in which people neither live not venture out.
b. The mangroves provide both food and medicines which people are in need of after any natural disaster.
c. The mangrove trees are tall with dense canopies and serve as an excellent shelter during a cyclone or tsunami.
d. The mangrove trees do not get uprooted by storms and tides because of their extensive roots.

46) Most commercial nuclear power plants worldwide are cooled by 
a. sodium
b. mercury
c. helium
d. water

47) Plants get their nitrogen from 
a. rain
b. the soil
c. the air
d. the bedrock

48) Which is the longest? 
a. a kilometer
b. a centimeter
c. a dekameter
d. a terameter

49) Which is the largest blood vessel in the body?
a. Alveoli
b. Artery
c. Aorta
d. Vein

50) What is a young horse called?
a. Colt
b. Filly
c. Foal
d. Hack

ANSWER KEYS:

C
2. A
3. A
4. C 
5. B
6. B
7. B
8. C
9. C
10. C
11. A
12. D 
13. A
14. C
15. C
16. C
17. A
18. B
19. B
20. D
21. C
22. A
23. C
24. D
25. C
26. B
27. A
28. A
29. D
30. A
31. A
32. B
33. A
34. C
35. D
36. C
37. D
38. C
39. B
40. D
41. C
42. C
43. A
44. C
45. D
46. D
47. B
48. D
49. C
50. C