Here are 10 one-word answer type questions on The Earth, along with their answers and explanations:
1. What is the shape of the Earth?
Answer: Geoid
Explanation: The Earth is not a perfect sphere; it has a slightly flattened shape at the poles and bulges at the equator, making it a geoid .
2. What is the outermost layer of the Earth called?
Answer: Crust
Explanation: The crust is the thinnest outermost layer of the Earth, consisting of solid rock and minerals .
3. Which layer lies beneath the Earth’s crust?
Answer: Mantle
Explanation: The mantle is the layer beneath the crust, extending up to 2900 km, and is composed of semi-molten rock called magma .
4. Which is the innermost layer of the Earth?
Answer: Core
Explanation: The core is the deepest layer of the Earth, divided into an outer liquid core and an inner solid core, primarily composed of nickel and iron .
5. What is the process by which rocks break down into smaller pieces?
Answer: Weathering
Explanation: Weathering is the process by which rocks are broken down into smaller particles due to natural forces like wind, water, and temperature changes .
6. Which force is responsible for the movement of tectonic plates?
Answer: Convection
Explanation: Convection currents in the Earth’s mantle cause the movement of tectonic plates, leading to earthquakes, volcanic activity, and mountain formation .
7. What is the layer of gases surrounding the Earth called?
Answer: Atmosphere
Explanation: The atmosphere is a layer of gases surrounding Earth, protecting it from harmful solar radiation and enabling life .
8. Which is the largest water body on Earth?
Answer: Pacific
Explanation: The Pacific Ocean is the largest ocean on Earth, covering more than one-third of the planet’s surface .
9. What term describes the continuous movement of water between the land, oceans, and atmosphere?
Answer: Water cycle
Explanation: The water cycle involves the processes of evaporation, condensation, and precipitation, recycling Earth’s water .
10. Which zone of the Earth supports life?
Answer: Biosphere
Explanation: The biosphere is the narrow zone where land, water, and air interact to support life, including all living organisms .
These questions summarize key aspects of Earth’s structure, natural processes, and its role in supporting life.
