1.
What is the closest planet to sun?
Correct Answer
A. Venus
Explanation
Venus is the correct answer because it is the closest planet to the sun. While Mercury is also close to the sun, Venus is closer. Earth and Jupiter are much farther away from the sun compared to Venus and Mercury.
2.
What part of the earth is composed of air?
Correct Answer
C. Atmosphere
Explanation
The correct answer is the atmosphere. The atmosphere is the layer of gases that surrounds the Earth. It is composed of a mixture of nitrogen, oxygen, carbon dioxide, and other trace gases. The atmosphere plays a crucial role in regulating the Earth's temperature, protecting it from harmful solar radiation, and providing the necessary gases for life to exist.
3.
Which of these is the biggest planet in the outer space?
Correct Answer
B. Jupiter
Explanation
Jupiter is the correct answer because it is the largest planet in our solar system. It is over 11 times the diameter of Earth and has a mass over 300 times greater than Earth. It is known for its distinct bands of clouds and the Great Red Spot, a massive storm that has been raging for centuries. Jupiter is located in the outer space, beyond the asteroid belt, making it the biggest planet in that region.
4.
Which of these planets is the coldest?
Correct Answer
D. Uranus
Explanation
Uranus is the coldest planet among the given options. This is because Uranus is the seventh planet from the Sun and is located much further away than the other planets listed. Its distance from the Sun results in extremely low temperatures, with an average temperature of -224°C (-371°F). In addition, Uranus has a thick atmosphere composed mostly of hydrogen and helium, which contributes to its cold temperatures.
5.
Which of these refers to the shape of the earth?
Correct Answer
C. Geoid
Explanation
Geoid refers to the shape of the earth. The geoid is the shape that the Earth would take if it were completely covered by water and its surface was not affected by tides, currents, or winds. It represents the true figure of the Earth, taking into account the irregularities in its shape caused by variations in gravity and the distribution of mass. The geoid is often used in geodesy and satellite navigation systems to accurately measure and represent the Earth's surface.
6.
What part of the earth is solid?
Correct Answer
A. Lithosphere
Explanation
The lithosphere is the solid part of the earth, consisting of the crust and the uppermost part of the mantle. It is the outermost layer of the earth and is composed of rocks, minerals, and soil. The lithosphere is responsible for the formation of landforms such as mountains, plateaus, and plains. It is also where all the continents and ocean basins are located. The other options, biosphere, hydrosphere, and atmosphere, refer to different parts of the earth that are not solid but rather consist of living organisms, water, and gases, respectively.
7.
What part of the earth is occupied by living beings?
Correct Answer
B. Biosphere
Explanation
The correct answer is Biosphere. The biosphere refers to the part of the Earth where living organisms exist. It includes all ecosystems and habitats on land, in water, and in the air. This is where plants, animals, and humans live and interact with each other and their environment. The biosphere is essential for sustaining life on Earth as it provides the necessary conditions and resources for living beings to thrive.
8.
What part of the earth is occupied by water?
Correct Answer
B. Hydrosphere
Explanation
The correct answer is Hydrosphere. The hydrosphere refers to all the water on Earth, including oceans, seas, lakes, rivers, groundwater, and even water vapor in the atmosphere. It covers about 71% of the Earth's surface and plays a crucial role in supporting life on the planet. The other options, atmosphere, lithosphere, and ionosphere, do not specifically refer to the water on Earth but rather represent different layers or components of the Earth's atmosphere and solid surface.
9.
Which of these planets is the farthest to the sun?
Correct Answer
A. Uranus
Explanation
Uranus is the correct answer because it is the seventh planet from the sun, making it the farthest planet in our solar system. Mars, Venus, and Earth are all closer to the sun than Uranus.
10.
What are natural satellites called in geography?
Correct Answer
C. Moons
Explanation
In geography, natural satellites are called moons. Moons are celestial bodies that orbit around a planet, just like Earth's moon orbits around our planet. These moons can vary in size and composition, and they play a significant role in the gravitational pull and tidal effects on their parent planet.