SOLAR SYSTEM

UNIVERSE

PLANETARY INTERIORS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Earth’s large core gives our planet which of the following?
A
Magnetic field protection
B
Heavy metals in Earth’s crust
C
Earth’s 23.5 degree tilt
D
None of the above are true.
Explanation: 

Detailed explanation-1: -Generated by the motion of molten iron in Earth’s core, the magnetic field protects our planet from cosmic radiation and from the charged particles emitted by our Sun. It also provides the basis for navigation with a compass.

Detailed explanation-2: -The Earth’s magnetic field is mostly caused by electric currents in the liquid outer core. The Earth’s core is hotter than 1043 K, the Curie point temperature above which the orientations of spins within iron become randomized.

Detailed explanation-3: -How does the magnetic field protect Earth? Our protective magnetic “bubble, ‘’ known as the magnetosphere, protects us from harmful space weather such as solar wind. Without the magnetosphere, the solar wind would erode our atmosphere, devoiding our planet of the life-giving air we breathe.

Detailed explanation-4: -The magnetosphere is a strong magnetic field that surrounds our planet. Acting as a shield, it deflects most solar energetic particle radiation that emanates from the Sun. For along with light, hot gases spew from the Sun and travel at a speed of a million miles an hour through space.

Detailed explanation-5: -The earth’s core is hot and molten. Hence, convective current in earth’s core is responsible for it’s magnetic field.

There is 1 question to complete.