As the population in a small town grows, a new water treatment plant is built. The plant is built on a local river where it can release treated water. The treated water is released downriver from the town. The town also gets its drinking water from further up the river.

How might the new treatment plant affect the ecosystem?

A. Treated water from the plant would affect communities downriver.
B. Treated water from the plant would affect communities upriver.
C. Treated water would affect this growing city’s drinking water.

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

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