Express the numbers appearing in the following statements in the standard form: The distance between the earth and the moon is 384,000,000 metres. Diameter of the earth is `1, 27 , 56 , 000` metres. Diameter of the sun is 1,400,000,000 metres. The universe is estimated to be about 12,000,000,000 years old.

Express the number appearing in the following statements in standard form.(a) The distance between Earth and Moon is 384,000,000 m.(b) Speed of light in vacuum is 300,000,000 m/s.(c) Diameter of the Earth is 1,27,56,000 m.(d) Diameter of the Sun is 1,400,000,000 m.(e) In a galaxy there are on an average 100,000,000,000 stars.(f) The universe is estimated to be about 12,000,000,000 years old.(g) The distance of the Sun from the centre of the Milky Way Galaxy is estimated to be 300,000,000,000,000,000,000 m.(h) 60,230,000,000,000,000,000,000 molecules are contained in a drop of water weighing 1.8 gm.(i) The earth has 1,353,000,000 cubic km of sea water.(j) The population of India was about 1,027,000,000 in March, 2001.

Express the numbers appearing in the following statements in standard form. a) speed of light in vacuum is 3,00,000,000 m/s

Express the number appearing in the following statements in standard form. a. the human eye blinks an average of 4,200,000 times a year. b. The length of the blood vessels in a human body is 97,000,000 m.

Express the following numbers in the standard form: (i) 3908. 78 (ii) 5,00,00,000

Write 'true' or 'false' for the following statement : The range of sonic vibrations is between 20 Hz and 20,000 Hz.

Express the following numbers in the standard form: (i) 5985.3 (ii) 65,950 (iii) 3,430,000 (iv) 70,040,000,000

Who lived in near est and central Aisa between 1,00,000-40,000 years back?

Express the following numbers in the standard form: 3,18,65,00,000 (ii) 846xx10^7 (iii) 723xx10^9

The moons distance from the earth is 360 , 000k m s and its diameter subtends an angle of 31 at the eye of the observer. Find the diameter of the moon.

Express the following numbers in the standard from: (i)3,90,878 (ii) 3,186,500,000 (iii)65,950,000