ECONOMIC BOTANY And OTHERS (Part-I)

Total Questions: 39

1. Vegetables spoil quickly because they contain more- [S.S.C. Online C.P.O. S.I. 5.06.2016 (Shift-II)]

Correct Answer: (b) water
Solution:Vegetables spoil quickly because of the high water content in them.

2. Early blight is a common disease of which of the following? [S.S.C. Online C.P.O. S.I. (T-1) 3.07.2017 (Shift-II)]

Correct Answer: (a) Potato
Solution:Early blight is a common disease of potatoes. It is caused by a fungus called Alternaria solani.

3. The 'solid waste' is also known as- [S.S.C. Online Graduate Level (T-1) 10.09.2016 (Shift-III)]

Correct Answer: (c) Sludge
Solution:Sludge is in a semi-solid state. It is also called solid waste as it is generated as a by-product as a result of the treatment of sewage

4. Symbiotic Bacteria responsible for the fixation of atmospheric nitrogen are present in- [S.S.C. Online Graduate Level (T-I) 11.09.2016 (Shift-I)]

Correct Answer: (a) peas
Solution:Symbiotic bacteria are found in Leguminosae family plants like peas, etc. They are responsible for the fixation of atmospheric nitrogen.

5. In water treatment plant, use of chloramines ensures- [S.S.C. Online Graduate Level (T-I) 11.09.2016 (Shift-I)]

Correct Answer: (c) Disinfection
Solution:Chloramines are used in water treatment plants to disinfect the water.

6. The bare ground between plants is covered with a layer of organic matter like straw. It helps to retain soil moisture. Identify the process. [S.S.C. Online MTS (T-I) 14.08.2019 (Shift-III)]

Correct Answer: (a) Mulching
Solution:The vacant land between plants is covered with a layer of organic matter such as straw. It helps in retaining soil moisture. This process is called Mulching.

7. Which of the following uses the spawn mechanism to duplicate itself? [S.S.C. Online Graduate Level (T-I) 1.09.2016 (Shift-III)]

Correct Answer: (b) Worm
Solution:
  • The worm adopts a spawn mechanism to duplicate itself.

8. In a rainforest, the vegetation that grows under the shade of a canopy is known as- [S.S.C. Online Graduate Level (T-I) 6.09.2016 (Shift-I)]

Correct Answer: (c) Understorey
Solution:The vegetation that grows under the canopy of a tree in a rainforest is called 'Understorey'. It is the habitat of many birds, snakes, lizards, predatory animals, insects, etc. This is the upper part of the forest floor.

9. Which one of the following is an insectivorous plant? [S.S.C. Online CHSL (T-1) 15.01.2017 (Shift-III)]

Correct Answer: (a) Utricularia
Solution:Utricularia is an insectivorous aquatic plant, also known as bladderworts. These plants make up for the lack of nitrogen by digesting insects.

10. The auxiliary buds [S.S.C. Online CHSL (T-I) 23.01.2017 (Shift-I)]

Correct Answer: (c) Is an embryonic shoot located in the axil of a leaf
Solution:Axillary buds originate from the corners of the leaf, i.e. the part located on the axis. It is a type of embryonic shoot.