What body system are involved when you sit down to do your homework.

- Integumentary system (your skin touches your clothes and then the chair, protecting your internal organs)

- Muscular system (you need your muscles to flex your legs onto the chair)

- Nervous system (your brain needs to voluntarily tell your muscles to sit down)

- Skeletal system (your muscles need to control your bones to put them on the chair)

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.

looks like the answer is     c     to me!