Which process causes Earth’s surface to warm?
the conduction of heat by air above Earth's surface
the radiation of the Sun’s electromagnetic waves
the convection of warm air from the atmosphere
the reflection of electromagnetic waves off bodies of water

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased

The offspring of two different species

When does an organism become an adult during a life cycle? a)before metamorphosis is complete b)after producing offspring c)after development is complete d)before gametes fuse