CHAPTER - 9 (SPACE WEATHER)

At the core of the Sun Hydrogen (H) atoms combine together to form Helium (He) atom what kind of reaction is taking place?

• Nuclear fission

• Nuclear fusion

• Nuclear Thermal

• Nuclear Chain reaction

At the radiation zone of the sun, energy transfer in which form of radiations?

• Energy Radiations

• Electromagnetic Radiations

• Gamma Radiations

• Magnetic radiations

Which layer of the sun is present between radiation zone and photosphere?

• Core

• Corona

• Convection zone

• Chromosphere

What is present in the convection zone?

• Electrons

• Metals

• Ions

• Plasma

In the convection zone, the radaitions travel in the form of ___________ motion

• Circular

• Irregular

• Regular

• Rectangular

Which is the visible surface if the sun?

• Corona

• Chromosphere

• Photosphere

• Core

Chromosphere and Corona layers are only visible when there is ____________________

• Total Solar Eclipse

• Total Lunar Eclipse

Which layer of the sun is this?

• Corona

• Chromosphere

• Photosphere

• Convecting Zone

T/F: Different stars have different thickness of radaition zones and sometimes in some stars radiation zone is absent.

• TRUE

• FALSE

Granules are:

• Cells

• Lump of gases

• Spots on the sun