Which of the Earth’s spheres is made up of the gases and air that surround the Earth and sustain life? A.
the hydrosphere
B.
the lithosphere
C.
the biosphere
D.
the atmosphere

Please select the best answer from the choices provided
A
B
C
D

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic

Which phrase describes the time it takes for a planet to make a complete rotation

Data courtesy of the un development programme 2006-2008 and world bank 2009 the chart above compares measures of development using the hdi and gdp. why might turkey rank lower in the hdi indicator even though it has a high gdp? a. turkey has a lower gdp than comparable countries in the hdi ranking. b. turkey must increase its hdi to have a higher gdp ranking. c. turkey is only compared to other european countries in gdp, not to the world, as it is in the hdi. d. turkey may struggle to provide adequate education or health care, or it may have a lower life expectancy.