Is it important to have a good contact between the lower end of a lightning conductor and the earth?If so, why??

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above