RIMC Class 6 Geography chapter 1 "The Earth - Our Habitat" Notes

RIMC Class 6 Geography chapter 1 "The Earth - Our Habitat" Notes

 The Earth :- 

- The Earth is our home planet.

- It is the third planet from the Sun in our Solar System.

- The Earth is a sphere (globe) in shape.

- The Earth's diameter is approximately 12,742 km.

- The Earth's circumference is approximately 40,075 km.

 The Earth's Structure:- 

- The Earth is composed of several layers:

    - Crust (outermost layer)

    - Mantle (thickest layer)

    - Outer core (liquid iron and nickel)

    - Inner core (solid iron and nickel)

- The Earth's surface is 71% water and 29% land.

 The Earth's Movements:- 

- The Earth rotates on its axis from west to east.

- The Earth takes 24 hours to complete one rotation.

- The Earth revolves around the Sun in 365.25 days.

- The Earth's axis is tilted at an angle of 23.5 degrees.

The Earth's Atmosphere:- 

- The Earth's atmosphere is the layer of gases surrounding the planet.

- The atmosphere is composed of 78% nitrogen, 21% oxygen, and 1% other gases.

- The atmosphere protects us from harmful radiation and regulates temperature.

The Solar System:- 

- The Solar System consists of eight planets:

    - Mercury

    - Venus

    - Earth

    - Mars

    - Jupiter

    - Saturn

    - Uranus

    - Neptune

- The Sun is the center of the Solar System.

- The planets orbit the Sun due to gravity.

*Important Points to Remember*

- The Earth is a unique planet in the Solar System.

- The Earth's atmosphere is essential for life.

- The Earth's movements affect our climate and seasons.

*Questions and Answers*

1. What is the shape of the Earth?

Answer: The Earth is a sphere (globe) in shape.

2. What is the Earth's diameter?

Answer: The Earth's diameter is approximately 12,742 km.

3. What is the Earth's atmosphere composed of?

Answer: The atmosphere is composed of 78% nitrogen, 21% oxygen, and 1% other .

15 questions with answers on the topic "The Earth: Our Habitat" for RIMC entrance exam:- 

1. What is the percentage of water on the surface of the Earth?

A) 70%

B) 75%

C) 80%

D) 85%

Answer: A) 70%

2. Which of the following is the largest continent on Earth?

A) Asia

B) Africa

C) North America

D) South America

Answer: A) Asia

3. What is the process by which the Earth's plates move?

A) Continental Drift

B) Plate Tectonics

C) Weathering

D) Erosion

Answer: B) Plate Tectonics

4. Which of the following is the highest mountain peak on Earth?

A) Mount Everest

B) K2

C) Mount Kilimanjaro

D) Mount Elbrus

Answer: A) Mount Everest

5. What is the term for the movement of water from the ground to the atmosphere through plants?

A) Respiration

B) Transpiration

C) Evaporation

D) Condensation

Answer: B) Transpiration

6. Which of the following is the largest desert on Earth?

A) Sahara Desert

B) Gobi Desert

C) Mojave Desert

D) Antarctic Desert

Answer: D) Antarctic Desert

7. What is the term for the study of the Earth's physical structure, composition, and processes?

A) Geology

B) Meteorology

C) Oceanography

D) Astronomy

Answer: A) Geology

8. Which of the following is the longest river on Earth?

A) Nile River

B) Amazon River

C) Yangtze River

D) Mississippi River

Answer: A) Nile River

9. What is the term for the process by which the Earth's atmosphere retains heat?

A) Greenhouse Effect

B) Ozone Layer Depletion

C) Global Warming

D) Climate Change

Answer: A) Greenhouse Effect

10. Which of the following is the largest ocean on Earth?

A) Pacific Ocean

B) Atlantic Ocean

C) Indian Ocean

D) Arctic Ocean

Answer: A) Pacific Ocean

11. What is the term for the region between the Tropic of Cancer and the Tropic of Capricorn?

A) Torrid Zone

B) Temperate Zone

C) Frigid Zone

D) Polar Zone

Answer: A) Torrid Zone

12. Which of the following types of rocks is formed from the cooling and solidification of magma?

A) Igneous

B) Sedimentary

C) Metamorphic

D) Foliated

Answer: A) Igneous

13. What is the term for the movement of the Earth's crust resulting in the creation of mountains?

A) Orogenesis

B) Weathering

C) Erosion

D) Deposition

Answer: A) Orogenesis

14. Which of the following is the smallest continent on Earth?

A) Australia

B) Africa

C) Asia

D) Europe

Answer: A) Australia

15. What is the term for the study of the Earth's weather and climate?

A) Meteorology

B) Oceanography

C) Geology

D) Astronomy

Answer: A) Meteorology

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