What statement is correct about a controlled experiment

How will technology impact medicine in the future?

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?

If your client can successfully complete two or more repetitions above the desired repetition range in the last set in two consecutive workouts for any given exercise, the load should be depending on your client's current physical abilities. increased by 1-5% increased by 2-10% increased by 5-15% increased by 10-20% none of these