Some migratory birds travel as much as 15,000 km to escape the extreme climatic conditions at home. Write the distance in metres using scientific notation.

Pune-based organisation____ conducted a study using a 15% M-15 methanol blend in vehicles and tested them for 3,000 km to evaluate emissions in real-world conditions as well as to check the performance of the vehicles.

Prabhu travelled from his house a distance of 20 kms to his friend's house. After some time he left his friends house and took a turn towards right and travelled 15 kms to reach a park. After resting for a while, he again started and turned to right and travelled 18 kms to reach a petrol pump. From there he again turned right and covered a distance of 15 kms. How many km more he has to travel to reach home?

A light year is the distance that light can travel in one year. 1 light year =9,460,000,000,000 km. a. Express one light year in scientific notation. b. The average distance between Earth and Sun is 1.496xx10^(8) km. Is the distance between Earth and the Sun greater than, less than or equal to one light year?

The Arctic tern is a bird which travels from the Arctic to the Antarctic region and then back again. Hence it sees two summers in a year. On an averge, Arctic terns travel a distance of 70,000 km annually. This is an example of

Astronomical distances are so large compared to terrestrial ones that much larger units of length are used for easy comprehension of the relative distances of astronomical objects. An astronomical unit (AU) is equal to the average distance from Earth to the Sun, 1.50xx10^(8)km . A parsec (pc) is the distance at which 1 AU would subtend an angle of 1 second of arc. A light year (ly) is the distance that light, traveling through a vacuum with a speed of 3.00xx10^(5) km/s, would cover in 1 year. Express a light - year and a parsec in kilometers.

It is common that Governments revise travel fares from time to time based on various factors such as inflation ( a general increase in prices and fall in the purchasing value of money) on different types of vehicles like auto, Rickshaws, taxis, Radio cab etc. The auto charges in a city comprise of a fixed charge together with the charge for the distance covered. Study the following situations Situation 1: In city A, for a journey of 10 km, the charge paid is Rs 75 and for a journey of 15 km, the charge paid is Rs 110. Situation 2: In a city B, for a journey of 8km, the charge paid is Rs91 and for a journey of 14km, the charge paid is Rs 145. The graph of lines representing the conditions are: (situation 2)