Q. Disadvantages of chemical agents are I. chemicals are toxic and harmful to human beings and animals II. chemical pollute the environment and plants III. weedicides used to remove weeds also pollute the soil Choose the correct option
A) I, II and III
B) I and II
C) I and III
D) II and III
Explanation
Commercial chemical fertilisers are more expensive than natural fertilisers. They may contain ingredients that may be toxic to the skin or respiratory system. Chemical fertilisers help increase the productivity of many garden plants and keep desirable plants healthy. But their use is also a major cause of many forms of pollution. Chemical fertilisers can build up in the soil, causing long-term imbalances in soil pH and fertility
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.