Briefly describe one disadvantage of using the circular buffer.

Many climate scientists set the upper limit of carbon dioxide that we should not cross at 560 ppm. In 2011, the atmospheric concentration was 390 ppm.

What was the initial goal of apartheid? Ensure a balanced system of representation for all people Maintain white domination and extend racial separation Create a fair system of leadership Institute new trading practices to benefit the most people

You use a straw to blow an air bubble into a glass of milk. The bubble quickly escapes, if the milk is like magma and the air bubble is like water vapor trapped in the magma, what type of volcanic eruption would this produce?

What is latitude and longitude?

This physical feature is the primary factor determining settlement patterns in North Africa and Southwest Asia. A) mountains B) salt C) the Great Rift D) water

What does acid rain do to the environment?

Passenger boats were attacked before the US became involved in WWI. True False

A tsunami wave that is 2 feet

Which phrases describe air pressure

Write a 125-word essay about the pollution of North America's atmosphere. In your essay, include: The causes Things people can do to reduce pollution Things the government can do to reduce pollution