Question

Write a composition on a screen at a traffic signal

Answer 1

Answer:

Traffic lights or traffic signals are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic. The world's first traffic light was a manually operated gas-lit signal installed in London in December 1868.

Answer 2

Explanation:

Glucose has four chiral carbons in its aldehyde form, and so there are 24, or 16 possible stereoisomers of this formula, only one of which is dextrose [(+)-glucose]. These 16 isomers are shown in Fig.