Carrot is orange in color because ?
[a] it grows in the soil
[b] it is not exposed to sunlight
[c] it contains carotene
[d] the entire plant is orange in color

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land