A dog sled driver prepared for a race. Her sled is being loaded with equipment but on snow and ice, the dogs moved the heavy sled. During the race, she came to an area of grass and dirt instead of snow. The sled came to a stop. The sled driver said, "There must be something wrong with a dog One of them is now pulling with a force of 600N." How would you respond to the driver? (THIS QUESTION IS BASED ON FRICTION)

when atmosphere interacts with biosphere they focuses on on the sources and sinks of green house gases (ghgs) air pollutants, particular matters, water and energy between the earth's surface and the atmosphere. the biosphere affects the climate. the atmosphere and biosphere are in constant interaction with each other, and all living things rely on gases in the atmosphere for life. organisms such as animals take in oxygen gas form the atmosphere to use in every cell of their body for smooth functioning of daily routine exercises.

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