Over time Pangaea broke apart to form other continents. Which group of modern day continents composed Laurasia?

North America, Europe, and most of Asia

Antarctica, South America, and Europe

Africa, South America, Antarctica, Australia, and the subcontinent of India

North America and South America

Explain how earth is like a giant bar magnet. how is our magnetic field made?

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same

What is it called when someone gets sick from eating food contaminated with germs or toxins? a. potentially hazardous food b. ptomaine poisoning c. foodborne illness d. raw food