Which of the following makes more particles of a substance available to react in a chemical reaction?

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.