Ear | MCQs

Explanation

Earth Hour is a global annual initiative of the World-Wide Fund for Nature.

Explanation

Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds.

The time a planet takes to revolve around the sun is called a year.

Explanation

A tsunami is an ocean wave triggered by large earthquakes that occur near or under the ocean, volcanic eruptions, submarine landslides, or by onshore landslides in which large volumes of debris fall into the water.

Explanation

Oblate Spheroid is a term that has been used to describe the shape of the Earth. The Earth is not a sphere.

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Explanation

زمین کے کل رقبے کا 71% حصّہ پانی پر مشتمل ہے لیکن اس میں 97% پینے کے قابل نہیں۔

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Seismograph: an instrument used to detect and record earthquakes.

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China launched world's first Earth Science Satellite named “Guangmu” China has launched the world's first Earth-science satellite, Guangmu or SDGSAT-1 into space from the Taiyuan Satellite Launch Center in the northern Shanxi Province.

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• Satellites in orbit around the Earth use sensors and cameras to collect data and images of the planet's surface, atmosphere, and oceans.
• It enabling remote sensing applications such as land use mapping, crop monitoring, and natural disaster management.

Explanation

The Earth and the Sun are approximately 25,000 light-years away from the center of the Milky Way galaxy.

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Earth observation satellites are primarily used for observing the Earth's surface, atmosphere, and oceans.