Sometimes it is very hard to hear in a gymnasium because of echoes . how can you changed it

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?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Why is the use of carbon-14 limited