pretest in earth science

There were theories about the planet earth, which of the following DOES NOT describe the earth?

• a. The Earth has gravity and magnetic force.

• b. The Earth's characteristics cannot be described

• c. The Earth is a rotating sphere that orbits the Sun.

• d. The Earth is tilted constantly on its axis with respect to its orbit around the sun resulting to the change of seasons.

What makes the Earth habitable for the plants and animals?

• a. It is very rich in natural resources.

• b. There are existing life forms on it.

• c. It has the right temperature for living things to survive.

• d. It has the right distance from the Sun and its atmosphere protects plants and animals from harmful solar radiation.

Which of the following geologic spheres comprise of all the water forms in

Earth including the Atmosphere?

• a. Biosphere

• b. Geosphere

• c. Hydrosphere

• D. Ionosphere

4. Which of the following statements DOES NOT correctly describe the Earth's

subsystems?

• a. Atmosphere is the blanket of gases that protects the Earth's bioticcomponents against the harmful ultraviolet rays.biotic components

• b. Lithosphere is the layer of Earth which contains the land and about 30% of the Earth.

• c. Hydrosphere is the layer of Earth which contains the water and its forms and is about 20% of the Earth.

• d. Biosphere is the layer of the Earth which consists of all the living organisms found in the Atmosphere, Lithosphere and Hydrosphere.

5. Quartz is one of the common examples of rock-forming minerals. Scientists

identify rocks based on which of the following sets of physical properties of rocks?

• a. places of origin

• b. sizes and shapes

• c. texture and behavior

• d. color, hardness, luster, crystal forms, density, and cleavage

6. An Earth Science student identifies a mineral present in rock by rubbing it on a porcelain plate and observing the color of its residues on the plate. Which test is performed by the student?

• a. hardness test

• b. scratch test

• c. streak test

• d. color test

7. Which of the following processes will lead to the formation of an igneous rock?

• a. Deposition and sedimentation

• b. Crystallization and solidification

• c. Heating and extreme pressure

• d. Erosion and compaction

8. How do scientists classify igneous, metamorphic and sedimentary rocks? They

classify rocks based on_

• a. color

• b. formation

• c. shape

• d. usefulness

9. Which of the minerals is INCORRECTLY defined based on its use?

• a. Aluminum is used for jewelry.

• b. Copper is used for electrical wiring.

• b. Copper is used for electrical wiring.

• d. Mixture of sand and pebbles is used for construction of building.

10. A student accurately measured the mass and volume of a sample of one of the

four minerals; 294.4 grams and 73.6 cm 3 Which mineral sample did the student measure? Use the data on the table belowMineral

Density (g/cm³)

corundum 4.0

galena 7.6

hematite 5.3 quartz 2.7

• a. Corundum

• b. Galena

• c. Hematite

• d. Quartz