What are red giants?

Right or wrong . If wrong , write the correct sentence : When the sun will become a red giant , its diameter will increase so much that it will swallow mercury and venus .

What is red nucleus?

Given below are the steps in the life cycle of a massive star . Using the information about life cycle of stars , arrange the steps in the correct order of their occurrence : a red giant forms when the stars hydrogen level drops if it is a massive star , a neutron star is formed . if it is super massive star , a black hole is formed a main sequence star that can live for millions or even billions of years gets formed gravity pulls hydrogen gas together to form a cloud a supernova occurs nuclear fusion occurs causing the star to glow .

Choose the correct alternative : Life span of our sun from birth till it becomes red giant is of …………

___________ solids are also called giant solids or network solids .

What does 'Red' indicate in the IUCN Red list (2004)?

Snehal has a red ribbon that is 80 cm long and a blue ribbon 2.20 m long. What is the ratio of the length of the red ribbon to that of the blue ribbon ?