The table shows the potential energy and kinetic energy of a skier at two different positions on a hill.
Position and Energy
Position (above ground) Kinetic Energy Potential Energy
100 meters
O units
50,000 units
60 meters
30,000 units
What is the kinetic energy of the skier at a height of 60 meters above ground?

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

i'd have to say the answer is probable the second option "the geosphere interacting with the atmosphere"