Conversion of the sun's energy from fossil fuels into electricity does not involve:

a. coal

c. steam

b. wind

d. turbines

B. wind.

Sun (solar) - - > plants (photosynthesis) - - > cola (chemical) - - > heat (combustion) - - > steam - - > turbine (kinetic) - - > generator (electric)

There is no wind.

A person's risk of sunburn on a certain body part is greater the more directly the Sun's rays hit that body part. If a person is walking outside with the Sun directly overhead, what body part has the greatest risk for sunburn? (Assume that none of the body parts mentioned below are covered by a hat or hair or anything.)