Which of the following is the best way to explain how baking a cake or frying an egg is a chemical change? Both are changing size and shape.
Heat is changing the texture of both substances.
Heat is being added to both, causing a phase change.
The end products of both cannot be reversed to their original forms.

Now it's your turn to investigate human impact around the world. grab your virtual lab coat and put on your environmental science hat. you will be taking a trip around the globe to explore three locations. at each location, you will investigate the cause and effect relationships of deforestation, desertification, and urbanization. you will also gather evidence of how these factors have impacted the environment over time

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

List five ways we are indebted to phytoplankton