Which of the following is the biggest disadvantage to the U. S. use of fossil fuel? *
1- Increase in infectious disease
2- Increased greenhouse gases

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

Alexa is preparing for a presentation by creating note cards identifying keywords that describe various features of each type of plate boundary. which words apply to all three of the convergent boundaries?