Answer:
D. AN AGENT TO ELIMINATE OLD WEAK INSECTS
Explanation
Because when older bugs get poisoned they have a less of a chance to survive because their already old and crippled.
But using cinnamon is a more effective way of killing bugs and ants and it does not harm children or other house hold animals that you may have.
The bacterium, which is able to survive in both aerobic as well as anaerobic conditions are known as facultative anaerobes.
The facultative anaerobes are the organism, which can use oxygen for the synthesis of the ATP (adenosine triphosphate) molecule, but in the condition, where the oxygen is less or absent, they shift to fermentation or anaerobic respiration.
Hence, the correct answer is facultative anaerobes.
D) Plants below the surface receive less sunlight than those on the surface
Because it helps them with finding new researches.