Factual information can be presented with bias. Please select the best answer from the choices provided.
true or false

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

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