1. Name and describe two types of mechanical weathering.

2. Describe two human actions that cause water pollution.

Which of the following defenistions best describe the commonwealth of nations

What are all the articles?

Check and double-click the placemark for Problem 1a in the D. Igneous Rocks worksheet folder to fly to the spectacular Half Dome in Yosemite National Park.

Who many continent do we have in the whole world?

Which country was declared a US protectorate under the Platt Amendment? A. Puerto Rico B. Texas C. Guam D.

What environmental problem results from draining oil that had been underground? A:subsidence B:channels C:processing D:conservation

Why does north Korea think they are superior

The northern portion of Canada is covered by boreal forests which are characterized by

Eventually became the capital of Russia

Which type of earth scientist was most receptive to Wegener's ideas? A. Seismologists (earthquakes and deep earth) B. Petrologists (igneous rocks) C. Geomorphologists (landscape shapes) D. Paleontologists (fossil organisms)