The plants in human welfare. Science State Board, Class 6: lessons, tests, tasks.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1.	Introduction
2.	Classification of plants
3.	Plants used as food
4.	Plants used as spices and as medicinal plants
5.	Fibre yielding plants
6.	Timber yielding plants
7.	Ornamental plants and interrelationship between plants and animals
8.	Other uses of plants - maintenance of soil fertility, prevention of soil erosion
9.	Other uses of plants - bio-fuels, rubber, plastic, neem coated urea, and perfumes
10.	Concept Map
11.	The plants in human welfare PDF chapter test

1.	Vegetables obtained from roots Difficulty: easy	2
2.	Spices and medicinal plants Difficulty: easy	3
3.	Examples of ornamental plants Difficulty: easy	3
4.	Types of wood, timber, and types of fibre Difficulty: easy	2
5.	Ornamental plants, their uses, and the interrelationship of plants and animals Difficulty: easy	2
6.	Examples of cereals Difficulty: medium	4
7.	Various uses of plants Difficulty: medium	4
8.	Plant classification according to the uses and examples of vegetables obtained from stem and root Difficulty: medium	4
9.	Plants that serve as food and various plant parts that are consumed as food Difficulty: medium	5
10.	Economic botany and uses of plants Difficulty: easy	2
11.	Uses of plants as spices and as medicinal plants Difficulty: medium	5
12.	Uses and the different sources of fibre yielding plants Difficulty: medium	4
13.	Fibres, softwood, hardwood and uses of each Difficulty: medium	5
14.	Interrelationship observed in plants and animals, ornamental plants Difficulty: medium	5
15.	Soil fertility maintenance and prevention of soil erosion Difficulty: medium	4
16.	Uses of plants as biodiesel, to generate electricity, to make rubber Difficulty: medium	5
17.	Analysing usefulness of plants in the economy Difficulty: hard	7
18.	Usefulness of plants and examples of plants that are widely used Difficulty: hard	7

1.	Training test 1 Difficulty: easy	9
2.	Training test 2 Difficulty: medium	9

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