Fist to answer will be the brainliest i need the answer asap don't answer if you don't know the answer

Climate

Explanation:

Due to the importance of Agriculture in Virginia's economy an essential thing to conserve will be the climate.Changes in climatic conditions can alter the volume of agricultural products/food produced in the area.A good example can be an increase in temperatures could led to extreme weather conditions reducing the availability of water .Livestock will be affected where as the nursery products could be damaged.This in turn will led to low agricultural productivity.

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).