Forensic linguists have studied such things as cell-phone contracts and agreements to

1.make criminal identification with 100 percent certainty

2.make a language profile of criminals

3.make language more understandable and accurate at all levels

4.do away with all inequality

1. Make criminal identification with 100 percent certainty.

Explanation:

Linguistic forensics are people trained to listen to the voices of criminals through phone calls or recordings and compare them with the alleged suspects and thus be able to determine with certainty whether or not it is the suspect who triggered the crime.

That is why the registration of the voice was considered an evidence.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

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.