Tamil Nadu Board Solutions for Chapter: Economic Biology, Exercise 1: textbook exercises

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Tamil Nadu Board Science Solutions for Exercise - Tamil Nadu Board Solutions for Chapter: Economic Biology, Exercise 1: textbook exercises

Attempt the free practice questions on Chapter 23: Economic Biology, Exercise 1: textbook exercises with hints and solutions to strengthen your understanding. Science Standard 9 solutions are prepared by Experienced Embibe Experts.

Questions from Tamil Nadu Board Solutions for Chapter: Economic Biology, Exercise 1: textbook exercises with Hints & Solutions

EASY
9th Tamil Nadu Board
IMPORTANT

_____ refers to the culture of prawns, pearl and edible oysters.

HARD
9th Tamil Nadu Board
IMPORTANT

Column A Column B
Lobsters Marine fish
Catla Pearl
Sea bass Shellfish
Oysters Paddy
Pokkali Finfish
Pleurotus sps Psoriasis
Sarpagandha Oyster mushroom
Olericulture Reserpine
Wrightia tinctoria Vegetable farming

MEDIUM
9th Tamil Nadu Board
IMPORTANT

Define Mushroom culture. Explain the mushroom cultivation methods.

MEDIUM
9th Tamil Nadu Board
IMPORTANT

What are the sources of organic resources for vermicomposting?

HARD
9th Tamil Nadu Board
IMPORTANT

Give an account of different types of fish ponds used for rearing fishes.

MEDIUM
9th Tamil Nadu Board
IMPORTANT

Classify the different breeds of the cattle with suitable examples.

MEDIUM
9th Tamil Nadu Board
IMPORTANT

Biomanuring plays an important role in agriculture. Justify.

MEDIUM
9th Tamil Nadu Board
IMPORTANT

Each bee hive consists of hexagonal cells. Name the material in which the cell is formed and mention the significance of the hexagonal cells.