Home
Class 10
BIOLOGY
..........are normally earthen dams with...

..........are normally earthen dams with masonry structures where water may over-flow.

A

Percolation tanks

B

Reserviors

C

Ponds

D

All the above

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • NATURAL RESOURCES

    VGS PUBLICATION-BRILLIANT|Exercise CREATIVE QUESTIONS FOR NEW MODEL PAPER (4 MARK QUESTIONS)|23 Videos

  • MOSQUITOESS WOES

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|3 Videos

  • NATURE IS A SACRED PLACE

    VGS PUBLICATION-BRILLIANT|Exercise Fill in the blanks|14 Videos

Similar Questions

Explore conceptually related problems

Emulsions are normally prepared by shaking the two components together vigorously although some kind of emulsifying agent usually has to added to stabilize the product. This emulsifying agent may be a soap or other surfactant (surface active) species or a lyophilic sol. Emulsions are broadly classified into two types : (i) Oil in water emulsions (O/W): Oil acts as dispersed phase and water acts as dispersion medium (ii) Water in oil emulsions (W/O) : Water acts as dispersed phase and oil acts as dispersion medium. Dye test, dilution test may be employed for identification of emulsions. Select correct statement :

Emulsions are normally prepared by shaking the two components together vigorously although some kind of emulsifying agent usually has to added to stabilize the product. This emulsifying agent may be a soap or other surfactant (surface active) species or a lyophilic sol. Emulsions are broadly classified into two types : (i) Oil in water emulsions (O/W): Oil acts as dispersed phase and water acts as dispersion medium (ii) Water in oil emulsions (W/O) : Water acts as dispersed phase and oil acts as dispersion medium. Dye test, dilution test may be employed for identification of emulsions. Read the two statements : A) Milk is an example of oil in water (O/W) type emulsion B) Cold cream is an example of water in oil (W/O) type emulsion

Hyperconjugation describes the orbital interactions between the p-systems and the adjacent s-bond of the substituent group(s) in organic compounds. Hyperconjugation is also called as Baker and Nathen effect. The necessary and sufficient condition for the hyperconjugation are : i) Compound should have at least on sp2 hybrid carbon of either alkene, carbocation or alkyl free radical. ii) A-carbon with respect to sp2 hybrid carbon should have at least one hydrogen. Hyperconjugation are of three types: (i) s(C-H), p-conjugation. (iii) s(C-H), positive charge conjugation iv) s(C-H), odd electron conjugation The hyperconjugation may be represented as Number of resonating structures due to hyperconjugation = (n + 1) where n is the number of a-hydrogen. Greater is the number of such forms, more is the stability of the species under considersation. Which of the following carbocations will show highest number of Hyperconjugation forms?

Hyperconjugation describes the orbital interactions between the p-systems and the adjacent s-bond of the substituent group(s) in organic compounds. Hyperconjugation is also called as Baker and Nathen effect. The necessary and sufficient condition for the hyperconjugation are : i) Compound should have at least on sp2 hybrid carbon of either alkene, carbocation or alkyl free radical. ii) A-carbon with respect to sp2 hybrid carbon should have at least one hydrogen. Hyperconjugation are of three types: (i) s(C-H), p-conjugation. (iii) s(C-H), positive charge conjugation iv) s(C-H), odd electron conjugation The hyperconjugation may be represented as Number of resonating structures due to hyperconjugation = (n + 1) where n is the number of a-hydrogen. Greater is the number of such forms, more is the stability of the species under considersation. Stability of saturated alkyl carbocations can be explained by

Hyperconjugation describes the orbital interactions between the p-systems and the adjacent s-bond of the substituent group(s) in organic compounds. Hyperconjugation is also called as Baker and Nathen effect. The necessary and sufficient condition for the hyperconjugation are : i) Compound should have at least on sp2 hybrid carbon of either alkene, carbocation or alkyl free radical. ii) A-carbon with respect to sp2 hybrid carbon should have at least one hydrogen. Hyperconjugation are of three types: (i) s(C-H), p-conjugation. (iii) s(C-H), positive charge conjugation iv) s(C-H), odd electron conjugation The hyperconjugation may be represented as Number of resonating structures due to hyperconjugation = (n + 1) where n is the number of a-hydrogen. Greater is the number of such forms, more is the stability of the species under considersation. Which of the following carbocations will show highest number of Hyperconjugation forms?

Hyperconjugation describes the orbital interactions between the p-systems and the adjacent s-bond of the substituent group(s) in organic compounds. Hyperconjugation is also called as Baker and Nathen effect. The necessary and sufficient condition for the hyperconjugation are : i) Compound should have at least on sp2 hybrid carbon of either alkene, carbocation or alkyl free radical. ii) A-carbon with respect to sp2 hybrid carbon should have at least one hydrogen. Hyperconjugation are of three types: (i) s(C-H), p-conjugation. (iii) s(C-H), positive charge conjugation iv) s(C-H), odd electron conjugation The hyperconjugation may be represented as Number of resonating structures due to hyperconjugation = (n + 1) where n is the number of a-hydrogen. Greater is the number of such forms, more is the stability of the species under considersation. Hyperconjugation is possible in which of the following species ?

VGS PUBLICATION-BRILLIANT-NATURAL RESOURCES-EXERCISE
  1. …………………….. is the alternative method to prevent ground water depletion...

    Text Solution

    |

  2. Cultivation of paddy is suitable for ……………………….. areas.

    Text Solution

    |

  3. ..........are normally earthen dams with masonry structures where wate...

    Text Solution

    |

  4. 97 % of water on earth is.....

    Text Solution

    |

  5. I am a plant. I am making the soil nitrogen rich. Who am I ?

    Text Solution

    |

  6. What is the percentage of cultivable land around the world is irrigate...

    Text Solution

    |

  7. Read the following sentences. Digging contour field bounding horizonta...

    Text Solution

    |

  8. Required amount of water for irrigation by 2025 is

    Text Solution

    |

  9. What do you call the resources that can be replaced after they are use...

    Text Solution

    |

  10. Example for non-renewable resource is …………………….

    Text Solution

    |

  11. Mention the non-renewable sources of energy.

    Text Solution

    |

  12. What do you call the resources that can be replaced after they are use...

    Text Solution

    |

  13. Through which people can reduce waste and manage natural resources wis...

    Text Solution

    |

  14. This logo shows

    Text Solution

    |

  15. What are considered as "lungs of the world" ?

    Text Solution

    |

  16. Each year the amount of forest land We are loosing

    Text Solution

    |

  17. Suggest any two activities to check soil erosion in your school.

    Text Solution

    |

  18. Deforestation accounts for…. % of the worlds green house gas emission

    Text Solution

    |

  19. Plant conservation and animal conservation depends on

    Text Solution

    |

  20. c) How can corrosion be prevented ?

    Text Solution

    |