Friction is the force that one surface exerts on another when they rub together. friction works in the direction opposite to the motion, causing the object to slow down. what is one way you could reduce the friction between two surfaces? a.) carpet the surfaces b.) put oil on the surfaces c.) put sand on the surfaces d.) allow one of the surfaces to rust

Answer is B

It is because I did this and got it right and also oil is a liquid so it will immediately stop whatever is coming.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.