PLEASE HELP ME! Which statement is NOT true about direct proportion?
A. direct proportion is a type of relationship between two variables
B. when one variable doubles, the other quadruples
C. when one variable doubles, the other doubles too
D. when one variable is zero, the other is also zero

d

Explanation:

when one variables is zero ,the other is also zero

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.