Home
Class 12
BIOLOGY
Rachel Carson’s famous book ‘Silent spri...

Rachel Carson’s famous book ‘Silent spring’ is related to:

A

Pesticide pollution

B

Noise pollution

C

Population explosion

D

Ecosystem management

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • BIODIVERSITY AND ITS CONSERVATION

    SARAS PUBLICATION|Exercise EXAMPLE|21 Videos

  • BIOTECHNOLOGY AND ITS APPLICATIONS

    SARAS PUBLICATION|Exercise EXAMPLE|90 Videos

Similar Questions

Explore conceptually related problems

From the hint given below, (a) Identify the person in the picture. (b) Mention the famous book written by him. (c) Name the research field which he was famous for? [Hints: finches - prodigality of production - Intraspecific struggle - speciation - Russel Wallace-selection ]

Each of the blocks shown in figure has mass 1 kg. The rear block moves with a speed of 2 m/s towards the front block kept at rest. The spring attached to the front block is light and has a spring constant 50 N/m. find the maximum compression of the spring.

A block of mass 5 kg executes simple harmonic motion under the restoring force of a spring. The amplitude and the time period of the motion are 0.1 m and 3.14 s respectively. Find the maximum force exerted by the spring on the block.

A block of mass 250g is kept on a vertical spring of spring constant 100N/m fixed from below. The spring is now compressed to have a length 10cm shorter than its natural length and the system is released from this position. How high does the block rise? take g=10 m/s^2 .

Faraday’s laws of electrolysis are related to ...............

Two similar springs p and Q have spring constants Kp and kQ, such that Kp>KQ. The are stretched, first by the same amount ( case a), then by the same force (case b). The work done by the springs Wp and WQ are related as, in case (a) and case (b), respectively:

A block of mass 2.0 kg is moving on a frictionless horizontal surface with a velocity of 1.0 m/s figure towards another block of equal mass kept at rest. The spring constant of the spring fixed at one end is 100 N/m. Find the maximum compression of the spring.

A spring balance has a scale which ranges from 0 to 25 kg and the length of the scale is 0.25 m. It is taken to an unknown planet X where the acceleration due to gravity is 11.5ms^(-1) . Suppose a body a mass M kg is suspended in this spring and made to oscillate with a period of 0.50 s. Compute the gravitational force acting on the body.

Figure shows two block A and B , each having a mass of 320 g connected by a light string passing over a smooth light pulley. The horizontal surface on which the block A can slide is smooth. The block A is attached to spring constant 40 N//m whose other end is fixed to a support 40 cm above the horizontal surface. Initially, the spring is vertical and unstretched when the system is released to move. Find the velocity of the block A at the instant it breaks off the surface below it. Take g = 10 m//s^(2) .

SARAS PUBLICATION-BIOLOGY AND HUMAN WELFARE-EXAMPLE
  1. High value of BOD (biochemical oxygen demand ) indicates that:

    Text Solution

    |

  2. Most animals are tree dwellers in a:

    Text Solution

    |

  3. Rachel Carson’s famous book ‘Silent spring’ is related to:

    Text Solution

    |

  4. Match the following list of microbes and their importance:

    Text Solution

    |

  5. Filiform apparatus is characteristic feature of:

    Text Solution

    |

  6. The wings of a bird and the wings of an insect are:

    Text Solution

    |

  7. Grafted kidney mays be rejected in a patient due to:

    Text Solution

    |

  8. In which group of organisms the cell walls form two thin overlapping s...

    Text Solution

    |

  9. Identify the wrong statements from the below.

    Text Solution

    |

  10. Eutrophication of water bodies leading to killing of fishes is mainly ...

    Text Solution

    |

  11. A plant in your garden avoids photorespiratory losses , has improved w...

    Text Solution

    |

  12. Which one of the following statement is wrong?

    Text Solution

    |

  13. A river with an inflow-of domestic sewage rich in organic-waste ma...

    Text Solution

    |

  14. Which of the following is wrongly matched in the given table?

    Text Solution

    |

  15. Gause’s principle ofcompetitive exclusion states that:

    Text Solution

    |

  16. It is much easier for a small to run uphill than for a large animal, ...

    Text Solution

    |

  17. Which of the following is not a component of downstream processing?

    Text Solution

    |

  18. Red list contains data or information on:

    Text Solution

    |

  19. Phytochrome is

    Text Solution

    |

  20. A lake which is rich in organic waste may result in:

    Text Solution

    |