What were the first humanlike beings, and where were they found?

Which statement explains what upwelling causes? A. Upwelling causes tides to rise and fall. B. Upwelling causes changes in the direction of currents. C. Upwelling causes nutrients, minerals, and tiny organisms to rise. D.

Which physical characteristics have played a role in the environmental problems of North Africa and Southwest Asia? Choose all that apply. A. abundant soil nutrients B. desert ecosystems C. petroleum resources D. plentiful precipitation

In the D" layer, the portion of the mantle closest to the core-mantle Boundary is hypothesized to be partially melted because the S-wave velocities decrease by 30% when passing through it. A) True B) False

The largest canyons and deepest valleys were created by a. moving water. c. wind erosion. b. chemical weathering. d. plate tectonics.

2. How are desert streams different from streams in humid locations?

How can you tell that a government is a dictatorship?

What is the slope of a line perpendicular to the line whose equation is x+2y=14

How often does Earth's magnetic field change direction?

Does Nigeria border Chad? Land to land interaction, not on Lake Chad

Which of the following countries south of the Sahara is the most stable? A. Somalia B. Ivory Coast C. South Africa D. Chad