(c) The student's method allows her to make a valid and reliable comparison of the rate of photosynthesis at different carbon dioxide concentrations.
1- Give the independent variable in her investigation.
2-Suggest a variable the student needs to control in her investigation.
3- Explain how the student could make sure her results are reliable.

WILL GIVE BRAINLIEST

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Prior to the mt. st. helens eruption on may 18, 1980, satellite and topographic views of the volcano were captured. based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 9 options: 600 m 400 m 750 m 500 m

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.