What is the purpose of the Nuclear Nonproliferation Treaty?
A) To prevent the spread of weapons of mass destruction by giving certain nations
the ability to have nuclear weapons
B) To establish a committee where nuclear technology and advancements are
shared throughout the world
C) To create new weapons of mass destruction to be used against terrorists
D) To help establish new nuclear nations in the world

i think its A)

Explanation:

hope it helps!

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the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.