Radioactive isotopes are used to

a.

determine the absolute age of rocks.

c.

determine how rocks are formed.

b.

determine the relative age of rocks.

d.

determine how rocks are changed.

Which statement about the people of ecuador is not true A. about 50% of ecuadorians are mestizo B. about one in four ecuadorians are of indian descend C. ecuador's population is divided between mountains and coastal lowlands D.

The angle of elevation from L to K measures 24°. If KL = 19, find JL. Round your answer to the nearest tenth.

Mcgraw hill world geography vocabulary activity how geographers look at the world worksheet answers

Which layer of earth contains the asthenoshere?

Select the three main types of map projections. Interrupted area Logistical Mercator Polar

What is a theodolite?

What is the longest to river n texas

What's the difference between an escarpment and a cliff?

Where are most the world's migrants moving to? Where are they coming from?

How do oceanographers measure the salinity of ocean water? A. by measuring the density of the water B. by measuring the depth of the water C. by measuring the conductivity of the water. D. by measuring the amount of marine life present