if the time of a place X long.100degree East was 5:00 am on Monday 11th April 2011 what was the time at long.10degree West

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!

The covers all of earth like a thin shell, but it is not a solid sheet of material. it is broken up into several large sections and many smaller ones. fill in the blank.

What is the mostly tropical region in asia