Why are the 4 properties (cohesive behavior, ability moderate temperatures, expansion upon freezing, + versatility as a solvent) of water important to life?

Aball is thrown straight up into the air with a speed of 21 m/s. if the ball has a mass of 0.1 kg, how high does the ball go? acceleration due to gravity is g = 9.8 m/s^2. a. 22.5 m b. 20.0 m c. 25.0 m d. 17.5 m

Can anybody me with this? ? (picture included.)

Identify some abiotic characteristics of the tundra biome.