Why are stars so important to life on earth?
a) black holes create gravity needed to keep earth in orbit
b) super nova's spread heavy elements throughout the universe
c) red dwarfs provide light at night so we can see
d) brown dwarfs provide soil and atmosphere for planets

B

Explanation:

The reason why is simple all stars hold key... compounds necessary to life. when a star supernovas it blast all of those out like a shotgun.

answer: option c.

explanation:

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.