1. Four equal strips A, B, C and D were cut from a potato whose cell sap concentration was 28.5% sugar. The strips were placed in sugar solutions of different concentrations as
follows: A-10%, B-15%, C-25% and D-35%.
(i) What changes would you expect in strips A and D?

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical