Plants and Nature

Q.

Which is the sweetest fruit in the world?

Q.

Oranges are mainly produced in the state of (a) Madhya Pradesh (b) Maharashtra (c) Kerala d) Tamil Nadu

Q.

Is tulsi a herb or a shrub. I know that tulsi is not a tree, but in a place called Nidhican in UP, why are there tulsi trees?

Q.

Define Wilting?

Q.

Name the cotton-producing states in India.

Q.

Write two examples of:

Analgesics

Q.

Power alcohol is a mixture of

1. $80\%$ petrol + $20\%$ benzene + small quantity of ethanol

2. $80\%$ petrol + $20\%$ ethanol + small quantity of benzene

3. $80\%$ ethanol + $20\%$ benzene + small quantity of petrol

4. $50\%$ petrol + $50\%$ ethanol + small quantity of benzene

Q.

The examples of recalcitrant seeds are

1. cereals and legumes

2. mango, cocoa, and rubber

3. cereals and tropical fruits

4. All the above

Q.

Name the improved varieties of the following crops:

1. Pigeon pea
2. Wheat

Q.

Which one of the following is being tried in India as a biofuel substitute for fossil fuels?

1. Musa

2. Azadirachta

3. Jatropha

4. Aegilops

Q.

Is spinach a root stem or leaf?

Q.

Define wilting. Why do some plants show wilting of their leaves at noon even in well watered soil?

Q.

5. Why is stem of jute plant immersed in water after harvesting?

Q. Plants which are grown for aesthetic reasons are called as:

1. Timber yielding plants
2. Medicinal plants
3. Fibre yielding plants
4. Ornamental plants

Q.

5. Name the process for separation of fibres from stems.

Q.

Match the disorders given in column I with their symptoms under column II. Choose the answer which gives the correct combination.

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. Asthma}& \text{a. Inflammation of nasal tract}\\ \text{ii. Bronchitis}& \text{b. Fully blown out alveoli}\\ \text{iii. Rhinitis}& \text{c. Spasm of bronchial muscles}\\ \text{iv. Emphysema}& \text{d. Inflammation of bronchi}\end{array}$

Q.

Diffuse porous woods are characteristic of plants growing in

1. Tropics

2. Alpine region

3. Temperate region

4. Cold winter regions

Q.

Share a common name 1. soap and a musical instrument 2. fruit and shoe polish 3. tree and tooth paste 4. famous monument and tea brand 5. bulb and source of energy

Q.

Methylated spirit is used to dissolve ___________

Q. Match the following

$\left(a\right)$	Alkaloids	$\left(i\right)$	Carotenoids, Athocyanin
$\left(b\right)$	Pigments	$\left(ii\right)$	Vinblastin, Curcumin
$\left(c\right)$	Drugs	$\left(iii\right)$	Morphine, Codeine

1. $a-ii,b-iii,c-i$
2. $a-i,b-iii,c-ii$
3. $a-i,b-ii,c-iii$
4. $a-iii,b-i,c-ii$

Q. Plant waste is used to generate electricity.

1. False
2. True

Q. name two plants or crops to produce sugar

Q.

Which tree yields resin and turpentine?

Q. Which of these are non-flowering plants?

1. Mosses
2. Mango tree
3. Ferns
4. Bean plant

Q.

Which one is an oil yielding plant?

Q.

Which one is an oil yielding plant among the following?

1. Lentil

2. Sunflower

3. Cauliflower

4. Hibiscus

Q. Cotton fibres are obtained from

1. Root
2. Seed
3. Leaf
4. Phloem.

Q. Which of the following plants are harmful?

1. Okra
2. Dodder
3. Asparagus
4. Lice

Q. Saffron is obtained from

1. Styles and stigmas of Crocus
2. Stamens of Hibiscus
3. Petals of Hibiscus
4. Stamens of Crocus

Q.

5. Find out the names of some states of India where cotton is grown.