2. A current is a part of a fluid that is moving continuously in a certain direction. Water is the fluid you used in Part 1 to show how uneven heating can produce a current. Name another common fluid you could use to show the same phenomenon. (1 point)

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

Fredrick griffith made a scientific discovery in 1928

The smallest parts of these that retain their original properties are called