Eduprobe
Question:
Which one of the following statements is not valid for aerosols?
They are harmful to human health
They cause increased agricultural productivity
They have negative impact on agriculture land
They alter rainfall and monsoon patterns
Solution:
Aerosol is the colloid of fine solid particles in the air such as fog. It is a type of pollutant that hinders the sunlight to reach the plants and thus, plants are not able to trap light for photosynthesis. In the absence of photosynthesis the agricultural productivity gets decreased. Thus, the correct answer is option B. The statement 'They cause increased agricultural productivity' is not valid because aerosols negatively impact agricultural productivity by reducing sunlight availability for photosynthesis.