CRM Science

The lines of latitude also known as parallels of latitude. When measuring the lines of latitude, always begin with the ______, which represents 0 degrees.

• a. Prime meridian

• b. Equator

• c. Longitude

• d. North pole

Watersheds drain their water into rivers and dams. Which of the following dam can be found in Norzagaray, Bulacan?

• a. La Mesa Dam

• b. Pantabangan Dam

• c. San Roque Dam

• d. Angat Dam

You can describe the location of a place using its latitude and longitude. Using your map, in which longitude could you find the Philippines?

• a. 120°E

• b. 120°W

• c. 80°E

• d. 80°W

Soil is formed when rocks and other materials near the Earth’s surface are broken down by a number of processes. What two factors have the greatest influence on soil formation?

• a. Reforestation and use of compost as fertilizer

• b. Kind of soil particles and temperature

• c. Slope of the land and rainfall

• d. Temperature and rainfall

What is the reason to support the statement “Cutting of trees in large areas contributes to global warming?”

• a. Plants use carbon dioxide to make food. When trees are cut CO2 in the atmosphere will not be used up.

• b. Plants use oxygen to make food. When trees are cut, oxygen in the atmosphere will not be used up.

• c. Plants use water vapour to make food. When trees are cut, water vapour in the atmosphere will not be used up.

• d. Plants use nitrogen to make food. When trees are cut, nitrogen in the atmosphere will not be used up

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Global warming is the increasing temperature phenomenon. Which of the following human activities contribute to global warming?

• a. IV only

• b. I, II,III and IV

• c. II, III,IV

• d. I only

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Atmosphere is the envelope of air that surrounds the Earths surface. What is the most abundant element in the Earth’s atmosphere?

• a. Oxygen

• b. Nitrogen

• c. Carbon dioxide

• d. Argon

The Earth’s atmosphere contains trace gases such as carbon dioxide, water vapor and etc. What is meant by “Trace’ Gases”?

• a. They are not harmful

• b. They naturally occurring on Earth

• c. They are present in very small amounts

• d. They are emitted by trees

Your community is rich in metallic minerals, which of the following should the community undertake in order to conserve such precious mineral deposits?

• a. Use dynamites to clear out the mountain and reveal the mineral deposits.

• b. Formulate laws and ordinances to regulate the mining of minerals.

• c. Put-up tunnels to harvest all metallic minerals.

• d. Use all of them to earn money.

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Renewable resources are the resources that can be replaced. Which pair of resources is renewable?

• a. Cotton and leather

• b. Aluminum and iron

• c. Soil and minerals

• d. Coal and solar energy