Eduardo is narrowing the focus of his science fair project and compiling a list of research questions his project can answer. which of the following questions can be answered scientifically?
which brand of sugar-free popsicle melts the fastest?
which brand of mp3 player sounds the best?
which brand of bandage hurts more to remove?
which brand of orange soda do people prefer?

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

flooding wildfire landslides climate change the factors listed have an immediate effect on the animal populations found in any habitat. the four factors would lead to a death. b emigration. eliminate c immigration. d mutations.