[ECED 120] Science Concepts Review - Week 1

Alin sa mga sumusunod ang kasunod ng Mars?

• may chika ako sayo

• pautang

• walang ganun

• Asteroid Belt

Which of the following statements is TRUE about the Sun?

• It is the center of the Milky Way Galaxy.

• It is a living thing.

• It is a non-living thing.

• Sometimes it is living, sometimes it is not.

For an experiment to be valid, which of the following must be true of the results?

• conclusive

• repeatable

• published

• verified

Which of the following gases is no longer used in refrigeration, or as a propellant for aerosols, and is believed to be responsible for the depletion of ozone in the upper atmosphere?

• carbon dioxide

• carbon monoxide

• chlorofluorocarbons

• hydrocarbons

It is a double carbonate, having an alternating structural arrangement of calcium and magnesium ions. It is a naturally occurring mineral and has a low carcinogenic level to humans. Long exposure to this mineral can lead to respiratory problems which have been reportedly observed in miners. What do you call this mineral, which can also disturb the habitats of marine animals and plants by potentially burying them, lowering the oxygen in the seawater, and blocking their access to sunlight?

• Calcite

• Dolomite

• Graphite

• Halite

Why is a diet with plenty of fruits good for the respiratory system?

• It can improve lung capacity.

• It can strengthen the lungs.

• It can make the mucus lining in the respiratory tract thin.

• It can make the mucus lining in the respiratory tract thick.

Why is the boundary between the Pacific Plate and all the surrounding plates called the "Ring of Fire?"

• Many earthquakes occur here.

• All of the world's active volcanoes are found here.

• Hawaii is located in the center of the plate.

• Many volcanoes are located at the convergent boundaries here.

The prevailing wind systems experienced in the Philippines are _____.

• East and West monsoons

• North and South monsoon

• Northeast and Southwest monsoons

• Northwest and Southeast monsoons

A space-suited astronaut has a mass of 190 kg on Earth. Considering that the pull of gravity on the Moon is 1/6 that of the Earth. What is the approximate mass of the astronaut on the Moon?

• 30 kg

• 70 kg

• 190 kg

• 380 kg

Which of the following situations is WORK being done?

• A woman starting her car.

• Grandma pushing a cart across the street.

• A girl pushing an immovable wall.

• A lady standing and holding a heavy bag while waiting for her daughter.