Which statement best explains why each river has its own set of characteristics? Rivers flow downhill, pulled by gravity toward the sea.
Rivers interact with the ecosystems through which they pass.
Rivers absorb oxygen from the atmosphere as they flow downhill.
Rivers have climates that are determined by the biomes they flow through.

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

links? do you have a link? i don't see anything?