Home
Class 11
BIOLOGY
Earth was formed billion years ago....

Earth was formed _____ billion years ago.

A

3.3

B

5.6

C

4.6

D

5.9

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • LIVING WORLD

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED - VERY SHORT ANSWER TYPE QUESTIONS|103 Videos

  • LIVING WORLD

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED - SHORT ANSWER TYPE QUESTIONS|36 Videos

  • LIVING WORLD

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED - HIGHER ORDER THINKING SKILLS (HOTS)|16 Videos

  • KINGDOM ANIMALIA

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (ANSWER THE FOLLOWING QUESTIONS)|86 Videos

  • LOCOMOTION AND MOVEMENT

    FULL MARKS|Exercise Additional Questions Solved (Give Long Answers)|22 Videos

Similar Questions

Explore conceptually related problems

It is said the earth has formed about 4.5 billion years back. How did the earth crust and atmosphere formed according to Big Bang theory?

The first non-cellular form of life could have originated ____ billion years back

According to Bigg Bang theory, space and time emerged together about billions of years ago.

Which era existed from 180 to 125 million years ago? Write about it.

Answer the following questions . a. The earth's magnetic field varies from point is space. Does it also change with time ? It so , on what time scate does it change appreciably ? b. The earth's core is known to contain iron. Yet geologists do not regard this as a source of the earth's magnetism why ? c. The charged currents in the outer conducting regions of the earth's core are thought to be responsible for earth's magnetism . What might be the ' battery ' (i.e., the source of energy) to sustain these currents ? d. The earth may have even reversed the direction of its field several times during its history of 4 to 5 billion years. How can geologists know about the earth's field in such distant past ? e. The earth's field departs from its dipole substantially at large distances (greater than about 30,000 km) what agencies may be responsible for this distortion ? f. Interstellar space has an extremely weak magnetic field of the order of 10^(-12) T, Can such a weak field be of any significant consequence ? Explain. [Note : Exercise 2 is meant mainly to arouse your curiosity . Answers to some question above are tentative or unknown . Brief answers wherever possible are given at the end . For details , you should consult a good text on geomagnetism.]

The study of history of all life forms on Earth that originated on earth millions of years ago is known as

The universe originated _____years ago,according to the big bang.

Human walking with erect posture was evolved about………… years ago.

The first human-like animals with erect posture evolved about…………. Years ago.