Earth & its Natural Satellites - 2 - Free MCQ Practice Test with solutions,

The upper part of the mantle consists of hard rocks.

The place where the tectonic plates touch each other is called a fault.

Weather satellites are used to forecast the weather. They take pictures of clouds over different regions of the earth, which help meteorologists to predict weather patterns and give early warning of dangerous storms and cyclones.

Remote sensing satellites take photographs of the earth to study the features of the earth's surface. Cartosat-2 is a remote sensing satellite launched by India on 12 January 2018.

The day when we cannot see the moon in the sky is called the New Moon day.

The innermost layer of the Earth is the inner core.

In the next couple of days after the new moon, a small portion of the side of the moon facing us gets sunlight and is visible to us. This is the Crescent Moon.

On the fourteenth day, the entire side facing us gets sunlight and we can see the Full Moon.

The sun is made up of hydrogen and helium.

The thin layer of air around the sun is called corona.

The moon takes about one month to revolve around the Earth.

The core is the hottest part of the sun.

In the core of the sun, hydrogen changes into helium, releasing a large amount of heat and light energy.

EDUSAT was the world's first educational satellite launched by India in September 2004. It is used to send educational programmes all over India, even to remote villages.

Artificial satellites have many functions. They are used to study the features of the earth's surface, forecast the weather, transmit telephone conversations and television programmes around the world, and study outer space.