Highland ecosystems in north america usually consist of

a.
coniferous forests and deciduous forests
b.
coniferous forests and grasslands
c.
permafrost and packed snow
d.
deserts and deciduous forests

Which of the following statements is true? a. there is not enough food produced in the world to feed everyone. b. the biggest cause of hunger and malnutrition is the cost of getting food to people who need it most. c. most countries have enough arable land and resources to feed their own population and export a surplus d. malnourishment is only seen in a few countries with very limited food supplies.

Solve for r in the formula v = ir, when i = 5 and v = 15.

Name one type of data that h-r diagrams do not show.