10th Class Physics Chapter 12 TestSPACE AND ENVIRONMENT

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. What fuels hurricanes and makes them stronger and more destructive?

   1. Freezing temperatures

   2. Heat absorbed by the ocean

   3. Tectonic plate movements

   4. Geysers and hot springs

2. Sun contains helium:

   1. 20%

   2. 24%

   3. 30%

   4. 74%

3. A major cause of rising sea levels is:

   1. Increased volcanic activity

   2. The Earth moving closer to the Sun

   3. Melting glaciers and ice sheets

   4. Decreased solar radiation

4. The melting of ice and expansion of seawater due to global warming directly results in ...... .

   1. Volcanic eruptions

   2. Movement of tectonic plates

   3. Higher sea levels

   4. More oxygen in the air

5. Warmer air holds more moisture, which leads to heavier rainfall and severe ...... in some areas.

   1. Droughts

   2. Flooding

   3. Volcanic eruptions

   4. Earthquakes

6. A significant source of background radiation is:

   1. Oxygen in the air

   2. Cosmic rays from space

   3. Sound waves in the atmosphere

   4. Ligth from the sun

7. The factor which primarily determines a planet's surface temperature:

   1. Its density

   2. Its orbital distance from the Sun

   3. Its gravitational field strength

   4. The number of moons it has

8. Geothermal energy is considered a ...... resource because it lasts as long as the Earth's internal heat is active.

   1. Non-renewable

   2. Renewable

   3. Chemical

   4. Artificial

9. Wildfires often result from high temperatures combined with a long period of ......

   1. Heavy rainfall

   2. Dryness

   3. High humidity

   4. Freezing weather

10. What is the primary reason cyclones form over warm ocean waters?

    1. The presence of strong winds

    2. The high atmospheric pressure

    3. The rising of warm, moist air creating low pressure

    4. The gravitational pull of the moon