Question

3. How do microorganisms cleanse the environment ?
4. Name the causative microorganism which causes
(a) Rust in wheat
(b) Blast in paddy
(c) Yellow-vein mosaic in Bhindi (Okra).
TICK ( THE ODD-ONE OUT GIVING REASON
1. Bacteria, Fungi, Virus, Algae, Protozoa
2. Mills, Curd, Renin, Lactobacillus
3. Anaerobic bacteria, Blue-green algae, Animal dung, Biogas
4. Skin diseases, Malaria, Dysentery, Giardiasis
5. Salt, Sugar, Oil, Clostridium botulinum, Sodium metabisulphite
DEFINE THE FOLLOWING TERMS
1. Food poisoning
2. Nitrogen cycle
3. Pasteurization​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer 3:-Microorganisms help in cleaning up the environment. They decompose dead and decaying matter from plants and animals, convert them into simpler substances which are later used up by other plants and animals. Thus, they are used to breakdown harmful substances.

Answer 4:-

(a) Rust in wheat:- puccinia triticina

(b) Blast in paddy:- Magnaporthe oryzae

(c) Yellow-vein mosaic in Bhindi (Okra):- Monopartite Begomovirus