Your grandfather is a farmer. you hear him complain about how his crops are not doing well. you know that we have the same amount of rainfall as last year. what might he need to do to improve the crops next year? explain & draw a picture.

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?