What is the source of the Rio Grande River?

a the Central Plateau in Mexico

b the Gulf of Mexico

c melting snow from the Rocky Mountains

d ocean swells from the Atlantic Ocean

How do students make a choice about which schools to attend in Russia?

How does condensation occur

Which pull factor is the most common reason why developed countries draw migrants from developing countries?

Fossils provide evidence for evolution, and often intermediate forms. One example of an evolutionary intermediate is Odontochelys, a Triassic-aged turtle with teeth. What does this early turtle tell us about evolution of the turtle shell?

In a republic, what represents territories and citizens in government.

Which of the following kinds of environmental problems is irreversible? A. Water pollution B. Extremely high atmospheric carbon dioxide levels C. Polar ice pack melting D. Species extinction

How can we calculate the mean temperature of a particular place?

What conditions make for a violent volcanic reuption?

Why is the Amazon River called the Ocean River?

What did hitler not push the Jewish question in Denmark