Home
Class 10
BIOLOGY
Statement X: Reduction in number of prey...

Statement X: Reduction in number of prey altimately results in reduction of the number of predator.
Statement Y : Ozone layer absorbs harmful ultraviolet radiations.
Which option is correct for statements X and Y ? a.X and Y both correct. b.X and Y both incorrect c.X correct and Y incorrect. d.X incorrect and Y correct.

A

X and Y both correct.

B

X and Y both incorrect

C

X correct and Y incorrect.

D

X incorrect and Y correct.

Text Solution

Verified by Experts

X and Y both correct.
Promotional Banner

Topper's Solved these Questions

  • OUR ENVIRONMENT

    KUMAR PRAKASHAN|Exercise OBJECTIVE QUESTIONS AND ANSWERS (Answer as directed : (Miscellaneous))|10 Videos

  • OUR ENVIRONMENT

    KUMAR PRAKASHAN|Exercise VALUE BASED QUESTIONS WITH ANSWERS|6 Videos

  • OUR ENVIRONMENT

    KUMAR PRAKASHAN|Exercise OBJECTIVE QUESTIONS AND ANSWERS (Chart- diagram based quesitons : )|6 Videos

  • MODEL QUESTION PAPER 1

    KUMAR PRAKASHAN|Exercise SECTION A (TRUE OR FALSE)|3 Videos

  • QUESTION PAPER-2 (MARCH,2020 - BOARD'S QUESTIONS PAPER)

    KUMAR PRAKASHAN|Exercise Section - C (Answer the following questions)|1 Videos

Similar Questions

Explore conceptually related problems

Statement X:Decomposers satisfy their energy requirement directly from producers. Statement Y : The amount of available energy in an ecosystem depends on the rate of photosynthesis carried out by the producers. Which option is correct for statements X and Y? a. X and Y both correct b.X and Y both incorrect. c.X correct and Y incorrect. d.X incorrect and Y correct.

Which option is correct for statements - X and Y ? Statement - X : A large number of male gametes fail to reach the female gametes. Statement - Y : The number of male gametes produced is several thousand times the number of female gametes produced. (A) X and Y both are correct and Y is correct reason of X (B) X is correct and Y is wrong (C) Y is correct and X is wrong (D) X and Y both are correct and Y is not correct reason of X.

Which option is correct for statement X and Y ? Statement - X : Formation of zygote is common in all sexually reproducing organisms. Statement - Y : Zygote is formed inside the body of organisms. (A) X and Y both are correct and Y is correct reason of X (B) Y is correct and X is wrong (C) X is correct and Y is wrong (D) X and Y both are correct and Y is not correct reason of X.

Which option is correct for statement X and Y ? Statement - X : Condia are light dry and provided with a tough coat. Statement - Y : Conidia are dispersed by wind. (A) X and Y both are correct and Y is correct reason of X (B) X is correct and Y is wrong (C) Y is correct and X is wrong (D) X and Y both are correct and Y is not correct reason of X.

Which option is correct for statement X and Y ? Statement - X : In spongilla and sycon, gemmules give rise to new animals. Statement - Y : Gemmules are also called as internal bud and this type of reproduction is called endogenous budding. (A) X and Y both are correct and Y is correct reason of X (B) Y is correct and X is wrong (C) X is correct and Y is wrong (D) X and Y both are correct and Y is not correct reason of X

Statement A : Wooden doors swell in the monsoon. Statement R: Swelling due to absorption of water in imbibition process. (A) Statement A and statement R are correct and statement R is the correct explanation of statement A. (B) Statement A and statement R are correct and statement Ris not the correct explanation of statement A. (C) Statement A is correct and R is in incorrect. (D) Statement A is incorrect and statement R is correct.

Statement X : First prophase of meiosis is complex. Statement Y: There are 5 sub stages in first prophase. Statement Z: Prokaryotic cell divides only for one. (A) Statement X, Y correct, Z incorrect (B) Statement X, Y incorrect, Z correct (C) Statement X, Z correct, Y incorrect (D) Statement Y, Z correct, X incorrect

The graph of the function y=f(x) is shown in the adjacent figure then correct statement is

KUMAR PRAKASHAN-OUR ENVIRONMENT-OBJECTIVE QUESTIONS AND ANSWERS (Choose the correct option from those given below each question:)
  1. What is being form due to entry of harmful chemical in food chain?

    Text Solution

    |

  2. What is formed by interdependent organisms to each other for their nut...

    Text Solution

    |

  3. In food chain. organisms which synthesise carbohydrates by the convers...

    Text Solution

    |

  4. In the food chain comprising of a frog. snake. grass. grasshopper. whi...

    Text Solution

    |

  5. An ecosystem has producers. herbivores and carnivores but without whic...

    Text Solution

    |

  6. Which trophic level has highest energy in an ecosystem? a.Producers ...

    Text Solution

    |

  7. Which trophic level, lowest energy available in an ecosystem? a.Produ...

    Text Solution

    |

  8. Which of the following is wrong statement ? a. All green plants and b...

    Text Solution

    |

  9. What is the role of decomposers in an ecosystem?

    Text Solution

    |

  10. Which of the following constitute a food chain ?

    Text Solution

    |

  11. Which of the following are environment friendly practices?

    Text Solution

    |

  12. When frog uses grasshopper as food, then energy flow occurs from ... ...

    Text Solution

    |

  13. Statement X:Decomposers satisfy their energy requirement directly from...

    Text Solution

    |

  14. Statement X: Reduction in number of prey altimately results in reducti...

    Text Solution

    |

  15. Usually green plants are at first level in an ecosystem because... a....

    Text Solution

    |

  16. Which is the correct statement regarding food chain ? a.All consumers...

    Text Solution

    |

  17. Which organism is more affected by biological magnification problem ar...

    Text Solution

    |

  18. Which of the following groups have only non- biodegradable components?...

    Text Solution

    |

  19. By whom the number of organisms are limited at trophic level of food c...

    Text Solution

    |

  20. In which category does the human beings fall in an ecosystem?

    Text Solution

    |