Which current global problem was initiated with the development of atomic weapons?
a. threats to world peace from unrestricted nuclear proliferationb. increased health risks for humans and animals from industrial pollutionc. elevated carbon dioxide in the atmosphere due to the deforestation of the rainforestsd. changes in world weather patterns and species habitats due to melting polar ice caps

The good answer is: A.

Explanation:

Since 1945, the number of atomic states has been growing, despite some efforts by the US and some great powers to control the proliferation of nuclear weapons and technologies. A major contemporary threat is the danger of atomic weapons being purchased by terrorist groups.

it further strained relations between the north and the south and convinced

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69