What process provides the source or generates the thermal heat that leads to hotspots and melts the earth's crust?

hint: this is a review of he#1 & he#2 consider the definition of a hotspot. it is widely believed that hotspots form where the inner core makes contact with the mantle or lowermost asthenosphere.

select one:

a. radioactivity in the core

b. conduction in the lithosphere

c. convection in the asthenosphere

d. radiation from the sun

People make choices about how to use resources.

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.

Which event most likely explains renewed demand in a recovery period? consumers choose to save more and spend less. economic policy renews consumer confidence and demand. producers decrease prices to prompt demand and recovery. production decreases to prompt increased demand.