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Q101. Which one of the following plant is preferred for mixed cropping in order to enhance the bioavailability of nitrogen ?
- AWheat
- BGram
- CMaize
- DBarley
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Answer: B) Gram
Q102. The gas used for artificial ripening of fruit is -
- AEther
- BAmmonia
- CAcetylene
- DEthylene
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Answer: D) Ethylene
Q103. Consider the following kinds of organisms : 1. Bat 2. Bee 3. Bird Which of the above is/are pollinating agent/agents ?
- A1 and 2 only
- B2 only
- C1 and 3 only
- D1, 2 and 3
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Answer: D) 1, 2 and 3
Q104. The plant from which cocoa and chocolate are obtained is a -
- Aherb
- Bshrub
- Csmall tree
- Dvery big tree
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Answer: B) shrub
Q105. The plant dye Henna imparts oranged colour to skin and hairs due to its reaction with which of the following ?
- AProtein and amino acids
- BLipids
- CCarbohydrates
- DAmino acids
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Answer: A) Protein and amino acids
Q106. Which one of the following is a protein fiber ?
- ANylon
- BPolyester
- CSilk
- DCotton
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Answer: C) Silk
Q107. The flavour of apples is mainly due to which one of the following ?
- AFormalin
- BBenzene
- CEthanal
- DBenzaldehye
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Answer: C) Ethanal
Q108. What is the mode of nutrition of mushroom ?
- APhotosynthetic
- BChemosynthetic
- CParasitic
- DSaprophytic
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Answer: D) Saprophytic
Q109. What is the bond between two amino acids in a protein called ?
- AEster bond
- BGlycosidic bond
- CPeptide bond
- DPhosphodiester bond
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Answer: C) Peptide bond
Q110. Crop shown at the commencement of the monsoon is called -
- ARabi crop
- BCash crop
- CKharif crop
- DNone of these
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Answer: C) Kharif crop
Q111. Consider the following statements : 1. Bringal is a good source of lron 2. Pumpkin is agood source of vitamin A Which of the following statements given above is/are correct ?
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
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Answer: B) 2 only
Q112. Ginger is a stem and and not roots because -
- AStores food material
- BNodes and internodes
- CGrows horizontally
- Dlt lacks chlorophyll n(e) None of the above /More than one of the above
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Answer: B) Nodes and internodes
Q113. ln plant which one of the following tissues is dead ?
- AParenchyma
- BCollenchyma
- CSclerenchyma
- DPhloem
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Answer: C) Sclerenchyma
Q114. Consider the following statements - 1. ln algae, the reproductive organs are single celled. 2. Fern plants lack true vascular system. Which of the statements give above is/are correct ?
- AOnly 1
- BOnly 2
- CBoth 1 and 2
- DNeither 1 nor 2
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Answer: A) Only 1
Q115. Which one of the following pair is not correctly matched ?
- AFunaria-Bryophyte
- BChlorella-Pteridophte
- CSpyrogyra-Algae
- DCycas-Gymnoserm
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Answer: B) Chlorella-Pteridophte
Q116. When the bark of a tree is removed in a circular fashion all around near its base it gradually dries up and dies because-
- AWater from soil cannot rise to aerial parts.
- BRoots are staryed of energy.
- CTree is infected by soil microbes.
- DRoot do not receive oxygen for respiration.
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Answer: C) Tree is infected by soil microbes.
Q117. Why do you feel cool under a tree but not so under a tin shed on a sunny day?
- AThe greenness of the tree gives the coal feeling .
- BPhotosynthesis absorbs heat
- CThe leaves convert water vapour into water which is a heat absorbing process
- DThe leaves gives out water which vaporises absorbing some heat as latent heat.
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Answer: D) The leaves gives out water which vaporises absorbing some heat as latent heat.
Q118. Bark of which tree is used as a concliment ?
- ACinnamon
- BClove
- CNeem
- DPalm
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Answer: A) Cinnamon
Q119. A dried flower bud which is used as spice is obtained from-
- ACinnamon
- BCardamon
- CClove
- DCoriander
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Answer: C) Clove
Q120. Water is conducted in vascular plant by -
- APhloem tissue
- BParenchyma tissue
- CMeristems
- DXylem tissue
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Answer: D) Xylem tissue
Q121. Which component of plants receives stimulus flowering ?
- AStems
- BBranches
- CLeaves
- DRoots
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Answer: C) Leaves
Q122. Plant which grow in saline soil are -
- AXerophytes
- BHydrophytes
- CHalophytes
- DSucculents
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Answer: C) Halophytes
Q123. Embryo is found in -
- AFlower
- BLeaves
- CSeeds
- DBuds
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Answer: C) Seeds
Q124. Colour of the plants is green due to the presence of -
- AChlorophyll
- BUrea
- CCarbon dioxide
- DOxygen
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Answer: A) Chlorophyll
Q125. The part of the stem where a leaf arises is Known as -
- ACarpel
- BNode
- CTuber
- DBud
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Answer: B) Node