Question

tell some answers which u know please

Answer 1

Ans 12 Exessive use of fertilizer make soil acidic or basic which is not suitable for plants

Answer 2

14. first antibiotic is penicillin discovered by sir Alexander Flemming.20.by spreading awareness, by stepping one step forward by purchasing items in paper bags or homemade bags.4. soil is loosened before sowing so that the seed can be neatly penetrated inside.10.food poisoning means when a person eats left over uncovered food.