Addictive substances and behaviors
a. have the potential to produce a positive mood change.
b. eventually, lose their hold on a person over time.
c. do not necessarily have negative consequences.
d. involve some type of substance abuse.

d. involve some type of substance abuse.

Explanation:

Addiction, which is a dependence on a particular substances leading to irrational behaviour when not taken. This addiction which is caused by substances are commonly refeered to as addictive subtances.

An example is a cigarette and coffee. These two substances would look normal when someone start to consume it initially but would turn to addcition over a given period of time. This would lead to substance abuse on the long run.

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.