1.When asteriods collides it will result to
a. meteoroid
b. asteriod
c. meteor
d. comet

2.Which of the following composition of the comet will make it shine brightly?
a. sodium
b. nickel
c. iron
d. argon

3.What chemical composition of the comet will make it more visible in the earth?
a. oxygen
b. silicon
c. nickel
d. iron​