While learning to ride a bicycle Boojho lost his balance and fell. He got bruises on his knees and it started bleeding. However, the bleeding stopped after some time.(a) Why did the bleeding stop?(b) What would be the colour of the wounded area and why?(c) Which type of blood cells are responsible for clotting of blood?

While learning to ride a bicycle Boojho lost his balance and fell. He

1.	While learning to ride a bicycle Boojho lost his balance and fell. He got bruises on his knees and it started bleeding. However, the bleeding stopped after some time.(a) Why did the bleeding stop?(b) What would be the colour of the wounded area and why?(c) Which type of blood cells are responsible for clotting of blood?
Answer» (a) A blood clot had formed. (b) Dark red due to clotting of blood. (c) Platelets.