if ron was able to play for 3 hours and for every chore he does he gets an extra 1 hour and 15 minutes per chore he did and if sam gets to play for 8 hours and for every chore he does he get 45 minutes extra how many chores would they have to do to get the exact amount of game time?

genetic variation will increase because of a new habitat and food source.

explanation:

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.