Home
Class 12
BIOLOGY
Earth originated in the past period of a...

Earth originated in the past period of about

A

4.5 billion years

B

8.0 billion years

C

3 billion years

D

1 billion years

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ORGANISMS AND THE ENVIRONMENT

    DINESH PUBLICATION|Exercise CYG|17 Videos

  • PHOTOSYNTHESIS

    DINESH PUBLICATION|Exercise CYG|10 Videos

Similar Questions

Explore conceptually related problems

Satellite revolving around the earth at a height of 400 Km above the earth's surface has a time period of about

A satellite having time period same as that of the earth's rotation about its own axis is orbiting the earth at a height 8R above the surface of earth. Where R is radius of earth. What will be the time period of another satellite at a height 3.5 R from the surface of earth ?

The rotation period of an earth satellite close to the surface of the earth is 83 minutes. The time period of another earth satellite in an orbit at a distance of three earth radii from its surface will be

Life originated from the earth's inorganic atmosphere in the past but this no longer happens today. Give two reasons .

If the radius of earth shrinks to kR (k lt 1), where R is the radius of Earth, then the time period of rotation of Earth, about its axis will become

A magnet has time period of oscillations T in earth's magnetic field at a place. If it is replaced by a magnet of magnetic moment six times the magnetic moment of the original one, the time period at the same place will be

Dinosaurs originated in Thassid/Cretaceous period.

The period of revolution of an earth's satellite close to the surface of the earth is 60 minute. The period of another the earth's satellite in an orbit at a distance of three times earth's radius from its surface will be (in minutes)

Primates originated about

DINESH PUBLICATION-ORIGIN OF LIFE -All Questions
  1. Experimental proof that some simple molecules like H2,NH3,CH4" and "H2...

    Text Solution

    |

  2. Experimental to prove that synthesis of organic compounds formed the b...

    Text Solution

    |

  3. Earth originated in the past period of about

    Text Solution

    |

  4. Which was not present freely in the early atmosphere of the earth?

    Text Solution

    |

  5. The first organisms were

    Text Solution

    |

  6. Planet nearest to sun is

    Text Solution

    |

  7. The most primitive cell-like chemical aggegates capables of growth and...

    Text Solution

    |

  8. Russian scientist who proposed the theory of origin of life was

    Text Solution

    |

  9. Under certain conditions, scientists have got cell-like structures but...

    Text Solution

    |

  10. Ozone layer is important as it

    Text Solution

    |

  11. Organic compounds first evolved on earth and required for origin of li...

    Text Solution

    |

  12. choose the correct sequence during formation of chemicals on early ear...

    Text Solution

    |

  13. First photosynthetic organisms to appear on earth were

    Text Solution

    |

  14. Oparin's theory is based of

    Text Solution

    |

  15. For testing Oparin's hypothesis Stanley Miller and Harold Urey used H2...

    Text Solution

    |

  16. Who said that organisms develop from existing organisms

    Text Solution

    |

  17. Coacervates are

    Text Solution

    |

  18. Life cannot originated from inorganic materials now because of

    Text Solution

    |

  19. Who demonstrated that life comes from life with the help of flask with...

    Text Solution

    |

  20. Most advanced theory of origin of life is that of

    Text Solution

    |