Ascientist observes plant roots growing through the mountain side. this is evidence for which type of natural process? physical weathering, chemical weathering, erosion, deposition

Can someone me with this and tell me what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

Draw the structure of dna nucleotide with adenine as nitrogenous base