Question

Q1. Take moong or gram equal sized seeds and germinate them. Sele
glasses or similar vessels. Mark them A, B and C. To glass A add little a
with a cow dung manure. In glass B put the same amount of soil mixe
Take the same amount of soil in glass C without adding anything. Now
water in each glass and plant the seedlings in them. Keep them in a safe |
daily. After 7 to 10 days observe their growth.
Answer the following questions-
18. Which plant showed better growth among A, B, & C. and why?
19. Define the manure.
20. Which plant showed minimum growth and why?
21. Write any two differences between fertilizer and manure?
22. Write any two examples of fertilizers.​

Answer 1

Answer:

18.plant A showed better growth because in glass a cow dung is added cow dung is highly rich in nutrients

19. The waste matter from animals that is put on the ground in order to make plants grow better.

20.plant c showed minimum growth because in plant c nothing is added .

21.manure:-

manure is obtained naturally by the decomposition of dead plants and animals.

fertilizer:-

fertilizer are chemical substance and are not typically natural.It is rich in soil nutrients like nitrogen , phosphorus ,and potassium.

22. The two examples of fertilizer are:-

1.potassium chloride

2.urea.