London, uk is on the prime meridian. using the 90 degrees west longitude for chicago, what is the time in london if chicago's time is 8 am?

When volcanoes erupt, magma (hot, molten rock) rises toward the surface of the earth. as magma cools, solid rock forms. this rock contains substances from the interior of the earth. which of the following natural resources is likely to be plentiful near subduction zones where volcanic activity has occurred in the past?