Ifu={1,2,3,4,5} a= {1,3,5,} and b {2,3,4} what is the complement a ∩ b​

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted

What evidence supports geological processes changing the surface of the earth? cutting down forests creates a decrease of habitats. tectonic plates uplift the rocky crust of earth to form mountains. competition in ecosystems creates a decrease in diversity. pollution runoff contaminates a lake.

Plz in a major hurry will give brainlest asapwhich of these would best describe the process labeled p? absorption of heat absorption of elements formation of solar energy formation of new elements