For every 15 degree there is one hour difference in time. So
the difference of 170 W and 170 E is 180 degree longitude so the time and day
at 170 E can be solve:
180 degree ( 1 hr / 15 degree) = 12 hrs
So its is 8:10 am Thursday at 170 E
A population pyramid tells us how many dependants there are. There are two groups of dependants, young dependants (aged below 15) and elderly.
The most abundant gas present in the air by volume would be A. Nitrogen, it composes about 80% of the air.
A is on the 1600 contour line so it's 1600.
B. Y is on 1240
C. 360