Which condition is essential for natural selection to result in a new
species?
A. Unlimited resources
B. An inherited variation
C. A static environment
D. Along life span

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land

Specific heat is the amount of heat required to raise the temperature of a material by 1°c per what unit? a. volumeb. joulec. massd. pressuree. density

Why did benjamin franklin refuse to write the declaration of independence? a. he did not want his humor to distract from the document's purpose. b. he was not from a southern colony. c. his poor vision made it difficult to write.