LET Reviewer - General Education (SCIENCE - Earth Science 2)

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Direction: Select the letter of the best answer.

1.  The planets Mercury, Venus, Earth and Mars can be classified under which categories?

          I. Terrestrial Planets

          II. Gas Planets

          III. Inner Planets

          IV. Outer Planets

a. I and III

b. II and IV

c. I and IV

d. II and III

Answer: a. I and III

2. All planets in the solar system _______.

a. revolve around the Sun

b. have solid surfaces

c. have natural satellites

d. rotate in parallel axes

Answer: a. revolve around the Sun

3.  Clouds that form as ice crystals, high in the atmosphere are known as _______.

a. cirrus clouds

b. cumulous clouds

c. stratus clouds

d. nimbus clouds

Answer:  a. cirrus clouds

4. The device usually used to measure air pressure is called a _______.

a. barometer

b. thermometer

c. hygrometer

d. anemometer

Answer:  ca. barometer

5.  Precipitation may NOT come in the form of ________.

a. sleet

b. smog

c. hail

d. rain

Answer:  b. smog

6. Twice a year, the earth experiences a day with equal hours of day and night. These biannual occurrences are known as_______.

a. Equinoxes

b. Seasons

c. Solstices

d. Eclipses

Answer: a. Equinoxes

7.  The reason why seasons change is _______.

a. the earth’s tilt

b. the sun’s distance from the earth

c. the earth’s rotation

d. the moon’s revolution

Answer: a. the earth’s tilt

8. Seventy-five percent (75%) of all gases in the atmosphere is found _______.

a. in the Troposphere

b. in the Thermosphere

c. dissolved in water

d. locked in glaciers

Answer: a. in the Troposphere

9. Airplanes travel within the _______.

a. Troposphere

b. Stratosphere

c. Mesosphere

d. Ionesphere

Answer: b. Stratosphere

10.  Marf and Luis live in the same house. When they washed their clothes, Marf hung his clothes outside the window while Luis hung his inside his windowless room. A few hours later, Marf’s clothes were already dry but Luis’ were not. Why?

a. high temperature

b. lower atmospheric pressure

c. lower cloud coverage

d. higher relative humidity

Answer: a. high temperature

11. Rene was hired to drop dry ice crystals on clouds with high humidity. This process is known as _______. 

a. weathering

b. precipitation

c. cloud farming

d. cloud seeding

Answer: d. cloud seeding

12. Planet Vee does not have an atmosphere. Which process will NOT happen?

a. weather patterns

b. photosynthesis

c. transmission of radio waves

d. erosion

Answer: d. erosion

13. On the open sea, the greatest factor in the formation of waves is the action of _______.

a. the movement of continental plates

b. ships crossing the ocean

c. fish swimming

d. moving masses of air

Answer: d. moving masses of air

14. The Banaue Rice Terraces is a man-made wonder whose main purpose is to _______.

a. prevent weathering

b. accelerate harvest

c. prevent erosion

d. develop new breeds of rice

Answer: b. accelerate harvest

15. Stalactites may be found ________.

a. formed on the ceiling of the cave

b. formed on the floor of the cave

c. around the mouth of the cave

d. outside the cave

Answer: a. formed on the ceiling of the cave

16. Mayon volcano’s graceful cone is a result of alternate eruptions of ash and lava. This type of cone is considered a/an _______.

a. dome

b. cinder

c. composite

d. shield

Answer: c. composite

17.  Of the minerals given below, the one with the lowest Moh’s scale rating is _______.

a. Talc

b. Diamond

c. Calcite

d. Corundum

Answer: a. Talc

18.  When a rock forms from magma deep into the ground, the rock is considered to be ______.     

a. intrusive igneous

b. extrusive igneous

c. sedimentary

d. metamorphic

Answer: b. extrusive igneous

19.  Which of the following is not correctly matched?        

a. Biological Weathering – action of roots of plants

b. Mechanical Weathering – action of frost

c. Chemical Weathering - oxidation

d. None of the above

Answer: d. None of the above

20. What would you most likely find on islands within the Pacific Ring of Fire?   

a. volcanoes

b. beaches

c. tropical rain forests

d. O

Answer:  a. volcanoes

21. Franco, a meteorologist wishes to measure the amount of water vapor in the air and how fast the wind is blowing. He should use which set of instruments?

a. wind vane and barometer

b. hygrometer and anemometer

c. rain gauge and wind vane

d. wet and dry bulb thermometer

Answer: b. hygrometer and anemometer

22.  The Earth’s revolution is responsible for all the occurrences below EXCEPT_______.

a. Seasons

b. Solstices

c. Day and Night

d. Equinoxes

Answer: b. Solstices

23.  When an earthquake is caused by the movement of magma towards the surface of the crust, it is known as _______.

a. diastrophism

b. tectonic forces

c. volcanism

d. gradational

Answer:  c. volcanism

24.  2. Alfred Wagner believed that the continents of the earth were joined up as a single landmass before they separated into the arrangement we know today. What do we call this single landmass?

a. Laurasia

b. Pangea

c. Eurasia

d. Asia

Answer: b. Pangea

25. Global Positioning Systems or GPS can find your exact location by using _______.

a. time zones

b. the International Date Line

c. The prime meridian

d. Longitude and Latitude

Answer: d. Longitude and Latitude

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Like this set of practice questions? See General Education - Earth Science Part 1 here or download all other LET Reviewers in PDF form here.