PLEASE HELP I'LL GIVE YOU BRAINLIEST! 1.) What is 0.0000456 in scientific notation?

2.) Convert 6x 10^8 out of scientific notation.

3.) What would 500,000 be in scientific notation?

Residential construction is expanding in florida, the expansion has caused fragmentation of habitats, one of the results of the increased construction is a decrease in the number of large predators such as the coyote, black bear and pool panther, which will be the most immediate local result of this fragmentation? 1)large predators will become extinct 2)decrease in middle sized predators 3)increase in population of top carnivores 4)increase in population of prey species