The line graph below shows the average amount of dissolved nutrients in a 1 point body of water each year from 1998 to 2003. Which human activity most
likely affected this body of water between 2000 and 2003? *
Dissolved Nutrients
14
12
10
Nutrient leveling
4
2
1998
1999
2000
2002
2003
2001
Year
burning fossil fuels
dumping litter in the water
adding chemical fertilizers to water
discharging warm water into the body of water
plz help

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

gas

explanation:

smoke is the matter of a gas

c) should be the answer.