Machu Picchu is the

A) worlds highest navigable lake

B) lost city of the Incas

C) Highest waterfall in the world

D) largest rainforest in the world

If the solution of an equation is x = - 2, what could the original equation be? A. x + 6 = 8 B. x - 6 = 8 C. x + 8 = 6 D. x - 8 = 6

Which of the following is part of Guatemala's 19 ecosystems?

What is our most important renewable energy source? a. soil c. coal b. fossil fuels d. the sun

The two main parts of a wave are the a. swell and whitecap. c. crest and trough. b. wavel

Why is tidal wave a bad name for an enormous wave generated by an earthquake

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

The sun exerts a gravitational pull on earth. why doesn't earth fall into the sun?