I only need number #12. I don’t understand it at all :( can someone pls help?

Water is important for the of cells. a: size, shape, and temperature b: temperature, color, and odor c: color, odor, and size d: shape, temperature, and color

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

Is the following chemical equation balanced? agno3 + nacl 4agcl + nano3 yes no