1.
Which of these is used to measure the barometric pressure of a geographical location?
Correct Answer
B. Barometer
Explanation
A barometer is used to measure the barometric pressure of a geographical location. Barometric pressure is the pressure exerted by the atmosphere at a specific location, and it is an important indicator of weather patterns. A barometer measures this pressure and can help forecast changes in weather conditions. A wind vane is used to determine wind direction, a rainguage is used to measure rainfall, and a speedometer is used to measure the speed of a vehicle.
2.
Which of these is not an elevated landform?
Correct Answer
D. Valley
Explanation
A valley is not considered an elevated landform because it is a low-lying area between two higher elevations, such as hills or mountains. It is typically formed by the erosion of water or glaciers over time, creating a V-shaped or U-shaped depression in the landscape. Unlike hills, mountains, and plateaus, which are characterized by their higher elevations and often rugged terrain, valleys are defined by their lower elevation and the presence of a river or stream flowing through them.
3.
Which of these is due to earth's rotation?
Correct Answer
D. Night
Explanation
Night is due to Earth's rotation. As the Earth rotates on its axis, different parts of the planet are exposed to the Sun's light. During the day, the side of the Earth facing the Sun experiences daylight, while the other side experiences darkness, which we perceive as night. This rotation creates the cycle of day and night that we observe on Earth.
4.
What is the biggest planet in the universe?
Correct Answer
D. Jupiter
Explanation
Jupiter is the correct answer because it is the largest planet in our solar system and the universe. It has a mass more than twice that of all the other planets combined and is known for its massive size and strong gravitational pull. Jupiter's size is so immense that it could fit over 1,300 Earths inside it.
5.
Which of these seasons is characterised by very low temperature?
Correct Answer
B. Winter
Explanation
Winter is characterized by very low temperatures. During winter, the Earth's axis is tilted away from the sun, causing less direct sunlight and shorter days. This results in colder temperatures as the sun's rays are spread out over a larger area. Winter is typically associated with freezing temperatures, snowfall, and icy conditions. It is a season known for its cold and often harsh weather.
6.
What happens when the air saturation reaches 100 percent?
Correct Answer
B. Rain starts
Explanation
When the air saturation reaches 100 percent, it means that the air is holding as much water vapor as it can at that temperature. This leads to the condensation of water vapor into liquid water droplets, which then fall from the atmosphere as rain. Therefore, when the air saturation reaches 100 percent, it is an indication that rain will start.
7.
Which of these is not a water body?
Correct Answer
C. Snow
Explanation
Snow is not a water body because it is a form of precipitation that occurs when water vapor in the atmosphere freezes into ice crystals and falls to the ground. While snow is made up of water molecules, it is not a permanent body of water like an ocean, river, or waterfall. Snow is temporary and eventually melts, flowing into rivers or other bodies of water.
8.
Who was the first person to sail around the world?
Correct Answer
B. Ferdinand Magellan
Explanation
Ferdinand Magellan is widely recognized as the first person to sail around the world. He embarked on this historic voyage in 1519 with a fleet of five ships. Although Magellan himself did not complete the journey as he was killed in the Philippines, one of his ships, the Victoria, managed to complete the circumnavigation under the command of Juan Sebastián Elcano. Magellan's expedition proved that the Earth was round and significantly expanded our knowledge of the world's geography.
9.
Who was the first man to land on moon?
Correct Answer
C. Yuri Gagarin
10.
How many natural satellites does the earth have?
Correct Answer
B. One
Explanation
The correct answer is "One." The Earth has only one natural satellite, which is the Moon. It is the fifth-largest moon in the solar system and has been orbiting the Earth for billions of years. The Moon plays a crucial role in Earth's tides and has also been a subject of scientific exploration and study.