Chapter 9 space weather

At the core of the Sun, Hydrogen atom combine together to form Helium atom, what kind of reaction is taking place?

• Nuclear fission

• nuclear fusion

• nuclear thermal

at the radiation zone, energy transfer in which form of radiation

• energy radiation

• electromagnetic radiation

• magnetic radiation

• gamma radiation

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

• core

• corona

• chromosphere

• convection zone

What is present in the convection zone

• electron

• metals

• ions

• plasma

What is the visible surface of the Sun?

• corona

• chromosphere

• photosphere

• core

Chromosphere and corona layers are only visible when there are

• total solar eclipse

• total lunar eclipse

granules are

• cells

• lump of gases

• spots on the sun

At which layers of the sun does granules and sunspot appear?

• convection zone

• photosphere

• corona

• chromosphere

solar flares are the strong eruption

• gases

• plasma

• ions

• radiation

which of the them is the most harmful phenomena of the sun activity

• solar flare

• coronal mass ejection

• solar prominences