🧪 NCCU FINAL EXAM – SCIENCE 7 (SY25)

What is the primary cause of Earth’s seasons?

•  A. Global warming

•  B. Earth’s tilted axis

• C. Distance from the Sun

•  D. Ocean currents

2. Which gas is most abundant in Earth's atmosphere?

• A. Oxygen

• B. Nitrogen
  

•  C. Carbon dioxide

• D. Hydrogen

3. Which best describes a food web?

• A. A single path of energy

•  B. A map of plant roots

• C. A series of connected food chains

• D. A diagram of weather patterns

4. What is the process by which a liquid changes into a gas?

•  A. Melting

• B. Condensation

• C. Freezing

• D. Evaporation

5. What do we call the long-term average of weather conditions in a region?

• A. Forecast

• B. Weather

•  C. Climate

•  D. Pressure system

6. Which of the following is an example of a phase change?

•  A. Lightning

• B. Boiling
  

• C. Precipitation

• D. Wind

7. What is one major reason for habitat loss in many ecosystems?

•  A. Animal migration

• B. Earthquakes

• C. Human development

• D. Climate stability

8. Which of the following is a predator-prey relationship?

• A. Mushroom and log
  

• B. Zebra and lion

• C. Bee and flower
  

•  D. Fish and coral

9. Describe what happens to molecules during the evaporation process.

10. How does deforestation affect the carbon cycle?