Over a period of time a student observed a small tadpole changing into a frog. Which of the following explains the physical change that takes place in this growing frog? The frog can change back into a tadpole. The tadpole changes its shape and form. The frog is made up of a different set of elements than the tadpole. Many reactions take place inside the tadpole as it changes into a frog.

Many reactions take place inside the tadpole as it changes into a frog.

Explanation:

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.