|1 Crore+ students have signed up on EduRev. Have you?|
Layer which saves us from harmful effects of UV radiation is called
The ozone layer is being washed out by use of harmful chemicals like aerosols.
The Earth belongs to which of these categories?
Planets are the celestial bodies that revolve around a star like Sun.
What does the figure show?
The layers are crust, mantle, inner core and outer core.
The thickness of the crust is around ___ km in the ocean floor.
It is around 5 km at the crust in the ocean floor. And continental crust is about 35-40 km thick.
The crust is mainly made up of rocks containing
This is why, it is also called SIAL (SI from Silica and AL from Alumina).
The mantle is around ________ km deep.
The mantle is around 3000 km or 1800 miles deep.
In which state of matter are the metals present in outer core of Earth?
Due to high temperature, the metals are present in molten or liquid state.
Which is the hottest part of the earth?
As we move down the Earth’s surface, the temperature rises.
Which of these is a characteristic feature of Earth?
Saturn has rings around it, Mars is the Red Planet and outer planets have more than one natural satellite, but Earth is the only planet with life.
What is the percentage of water on earth’s surface?
More than two-thirds of the earth’s surface is covered with water.