Ans: 0.58 m 37 2075 Set A Q. No. 11 What is the difference between the
speed of longitudinal waves in air at 27°C and at - 13°C?
What is the speed at 0°C?
[4]​

like poles repel so keep pushing north to north and repels funny to see this

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.

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;