Which organisms in the food web shown compete for the same food source in this environment?

the answer would be b i believe

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock

the correct answer to this question is 2

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.