Which of the following substitutions can reduce air pollution?
a. using a bike instead of a car
b. using dumps instead of landfills
c. using coal instead of oil
d. using fireplaces instead of a wind farms

Explain light independent reactions

Sort the examples by the type of diversity that they exhibit a park has 80 species of trees red, yellow, and orange bell peppers are all members of the same species individuals of the same lizard species have different mating strategies. five different bird species are at a bird feeder. genetic diversity species diversity

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs