ESS
Grade-6
Easy
Question
Outer core comprises of __________.
- Nickel and carbon
- Nickel and iron
- Nickel and copper
- None of these
Hint:
most abundant metal in metal meteorites and dense metallic cores of terrestrial planets like Earth
The correct answer is: Nickel and iron
The correct option is b)Nickel and iron.
The core consists of two layers, the outer core and the inner core, which adjoin the mantle. The boundaries separating these regions are called Bullen discontinuities. About 2,200 kilometers (1,367 miles) thick, the outer core is composed primarily of liquid iron and nickel. The NiFe alloy in the outer core is very hot, 4500-5500 degrees Celsius.
Related Questions to study
ESS
Observe the following image. It belongs to ________.
Observe the following image. It belongs to ________.
ESSGrade-6
ESS
______________ is the main home of human being.
______________ is the main home of human being.
ESSGrade-6
ESS
Earth’s magnetic field is developed in _____.
Earth’s magnetic field is developed in _____.
ESSGrade-6
ESS
Jupiter is a/an __________
Jupiter is a/an __________
ESSGrade-6
ESS
The name of the planet shown in the image is ________.
The name of the planet shown in the image is ________.
ESSGrade-6
ESS
Earth is called a________ planet.
Earth is called a________ planet.
ESSGrade-6
ESS
The outer planets are ________ the inner planets.
The outer planets are ________ the inner planets.
ESSGrade-6
ESS
_________ is a dwarf planet that was once considered a full planet of the Solar System.
_________ is a dwarf planet that was once considered a full planet of the Solar System.
ESSGrade-6
ESS
Pluto is a __________.
Pluto is a __________.
ESSGrade-6
ESS
The following image is of_______.
The following image is of_______.
ESSGrade-6
ESS
Name the planet that has life on its surface.
Name the planet that has life on its surface.
ESSGrade-6
ESS
__________celestial objects orbit the Sun and often have a visible tail of gas.
__________celestial objects orbit the Sun and often have a visible tail of gas.
ESSGrade-6
ESS
Around which of the following object does comet revolve?
Around which of the following object does comet revolve?
ESSGrade-6
ESS
_______ is not related to solar system.
_______ is not related to solar system.
ESSGrade-6
ESS
__________is the third planet from the sun.
__________is the third planet from the sun.
ESSGrade-6
