A factor that can vary among people taking part in an experimental study is known as a A sample. B. survey. C variable. D. theory

Why is it often difficult to get funding for local parks? a. state governments do not like to grant permits for local parks. b. federal regulations prohibit most fund raising. c. there is often a small tax base. d. federal funding cuts have all but stopped local construction of parks.

Wich technque is not recommended for use as a supporting detail

Waste is deposited into in thin layers which are then compacted and covered with soil.