Which of these do not affect fluid friction? A. The surface of an object
B. The viscosity (thickness) of fluid an object is in
C. The shape of an object
D. The weight of an object

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make 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?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.