Water Supply and Sanitary

401) Septic tanks are best suited for

Discuss in Comment

scattered residences

402) Pieces of papers, crockery, scrap metals etc., are classified as

Discuss in Comment

rubbish

403) The solid waste resulting from growing, handling, preparation, cooking and consumption of putrescible organic matter is called

Discuss in Comment

garbage

404) Salvaging is

Discuss in Comment

extraction of essence from waste

405) Agent responsible for ecological imbalance

Discuss in Comment

man

406) The activity that may not affect ecological balance is

Discuss in Comment

developing gardens

407) Eco system is

Discuss in Comment

species and habitat

408) The relationship between “Biotic” and “Abiotic” substances of an ecosystem is

Discuss in Comment

reciprocity

409) A food chain

Discuss in Comment

is transfer of energy from one organism to another

410) “A nectar sipping butterfly → Dragon fly → Frog → Snake → Hawk” is

Discuss in Comment

Predator food chain

Subject Notes

Objective Box

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