Which explanation explains why the Northern Hemisphere gets more direct sunlight in the Summer?

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?

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

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