What did the Sierra Nevada Mountains signify to those who were moving west? What challenges did these mountains and their obstacles present to gold-seekers?

Select all that apply Which of the following three characteristics describes the Incas? domesticated the llama lived in the Andes Mountains developed a system of writing economy based on agriculture built an extensive empire

The domestication of plants allowed humans to found the first permanent settlements because food supplies became more

Which present-day countries make up the region known as middle america

Convection currents within the Earth cause plate tectonics due to the movement of the mantle?

As water soaks under ground, it first passes through a rock layer that has pores that are mostly filled with air. What is this zone called

The highest mountain peaks in the world are in the A) Andes. B) Himalayas. C) Rockies. D) Urals.

Write a paragraph of at least 5 sentences where you describe what school is like for students in Algeria.

How can the mantle flow by convection if it is a solid?

What relationship does this philosophy promote Harmony and order

In the United States, which action is an example of an economic freedom? A) paying taxes B) attending school C) registering to vote D) starting a business