Which of the following statements about wind energy is not true?
a.
wind energy is a nonrenewable energy resource.
b.
wind energy is used to sail ships.
c.
wind energy is not reliable.
d.
windmills are currently being used to provide energy

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.