Question

A few tomato seeds were placed in three pots A, B and C containing soil. The pots were watered regularly and following were mixed with the soil in the respective pots.

$\begin{array}{cc}\text{Pot}& \text{Source of Nutrients}\\ \text{Pot A}& \text{Nil}\\ \text{Pot B}& \text{Cow dung}\\ \text{Pot C}& \text{Urea}\end{array}$

Which of the following will be observed after 10 days?

• A. Lot of growth in pot A
• B. Not much growth in pot B and a lot of growth in pot A
• C. Lot of growth in pot B but very little growth in pot C
• D. Very little growth in pot A but lot of growth in pots B and C

Answer 1

The correct option is D Very little growth in pot A but lot of growth in pots B and C

Very little growth in pot A but a lot of growth in pots B and C is observed because pots B and C have a good amount of nutrients in their soil in the form of manure and fertilizers respectively. When turned into compost and fed to plants, cow dung becomes a nutrient-rich manure and also fertilizers like urea can enrich the soil with nitrogen.