Find the longitude of certain place when it is 2:30 am and time at 70 degree east is 1 am?

92.5 degrees East

Explanation:

Theoretically, it would depend on the location inside the time zone but splitting the world into 24 equal sections would make each time zone spannig 1 hour be 15 degrees wide so since the second time is 90 minutes ahead of the first. The difference between time zones would be 22.5 degrees east of the original location. So 70 + 22.5 = 92.5 degrees east.

d. stage 4

explanation:

the existence of some kind of demographic transition is widely accepted in the social sciences because of the well-established historical correlation linking dropping fertility to social and economic development.[1] scholars debate whether industrialization and higher incomes lead to lower population, or whether lower populations lead to industrialization and higher incomes. scholars also debate to what extent various proposed and sometimes inter-related factors such as higher per capita income,lower mortality, old-age security, and rise of demand for human capital are involved.[2]

f.without carbon-14, james can use relative dating to estimate the age of the fossil.