Which of these best describes Earths mantle?

Select one:
a. Most dense layer, consists of the outer and inner parts
b. Thinnest under the oceans and thickest under continents
c. Middle layer, density increases with depth as pressure increases
d. Least dense layer overall, consists of two layers of different thickness

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Although china’s total economic output, measured by gross domestic product (gdp), is third largest in the world, it is considered a developing nation. what is most likely the most important factor for this designation? a. china’s government spends money on things that do not benefit human development. b. china has a large population, so its gdp per person is only modest. c. china has a strong economy but weak literacy and school attendance rates. d. china’s high rates of disease offset the country's economic gains.

¿qué parte de la patagonia está en peligro de exinción por su sobrepesca?