Answer:
Somatotropin(Growth Hormone)
Explanation:
-Uncontrolled growth in a person is usually caused by the excessive secretion of growth hormone.
-This hormone is also known as Somatotropin.
-This hormone is produced in the pituitary gland.
Number 1 is Comets and asteroids
Number 2 is Comets are made of ice and rock
Number 3 is Meteor