In an effort to try winning world war i, many countries broke previously created treaties and pacts that banned the use of chemical-based weapons. based on the excerpt, how did chemical warfare advance during world war i? a) allied powers set bundles of wood and sulfur (s) on fire to smoke their enemies out of the trenches. b) production of ammonia for fertilizer was re purposed to cause enemies in the trenches to scatter because of the smell it produced. c) scientists were forced to stop their research on specific chemicals in order to fight in world war i. d) lethal gases, such as chlorine (cl), were experimented with and used on enemy troops. d?

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. 

B.) falsehope this !