Science and Technology

Which of the following explains the occurrence of day and night?

• The tilt of the Earth’s axis

• Earth’s rotation on its axis

• Earth’s revolution around the sun

• The tilt of the sun’s axis

What is the effect of the tilting of the Earth’s axis?

• Day and night

• Seasonal change

• Weather disturbances

• Changes in the phases of the moon

When does a solar eclipse occur?

• The Earth is behind the sun

• The sun is between the Earth and the moon

• The moon is between the Earth and the sun

• The Earth is between the moon and the sun

Which human activity contributes the most to global warming?

• Planting more trees

• Burning fossil fuels

• Using renewable energy

• Reducing carbon emissions

What will most likely occur if global warming is not addressed?

• Lower sea level

• Melting ice caps

• More pollution in water

• More reflected sunlight off the ice pack

Which of the following is/are (a) natural factor/s that may disrupt the water cycle?

• Water pollution

• Drying of groundwater

• Mismanaged domestic and industrial use of water

• Both a and c

Which of the following can help ensure a suitable environment for future generations?

• Biological controls

• Chemical dumps

• Fossil fuels

• Pesticides

What can happen to global temperatures for several years after a volcanic eruption?

• Temperatures may increase

• Temperatures may decrease

• Temperatures can create more volcanoes

• Temperatures are not affected by volcanic eruptions

Which of the following does NOT help in controlling floods?

• Deforestation

• Reforestation

• Crop rotation

• Construction of floodways

Which of the following contribute to the formation of acid rain?

4. I. Volcanic eruptions

5. II. Burning fossil fuels

6. III. Combustion in vehicles

7. IV. Oil refineries

• I, II, III

• II, III, IV

• I, III, IV

• I, II, III, IV