Heavy sedimentary items such as as rocks for example <span />
Supergiant stars can have masses from 10 to 70 times greater than our Sun. When it comes to brightness, some of them can be from 30,000 times or brighter than our Sun. The temperature range of a supergiant spans from around 3,450 K to 20,000 K. The absolute visual magnitudes between -3 and -8.
Answer:
*first attempt the questions , it will give u a good sense of how the questions can come
*read every chapter very throughly
*this may sound wierd but . imagine ur a teacher in a classroom and explain the chapter to ur class and take a quiz ( but its on urself) if they ( you) answer correctly then ask why
this is the correct way of revising any chapter , it works for me perfectly.
it is said that if u teach someone something , u are more likely to remember it ( in this case ur imaginary students)
if you study like this , u wont need any extra material
hope it helps ,pls mark me as brainliest