Question

1. a line graph shows no pattern between sugar concentration and plant growth. the best conclusion is:

a) sugar definitely makes plants taller
b) sugar has no clear effect on plant growth
c) plants cant survive without sugar
d) the hypothesis is always true

1. a photo shows a student using the same beaker, same scale, same water source for all tests. this shows the importance of:

a) independent variables
b) constants
c) dependent variables
d) conclusion

Explanation:

For the first question, since the line - graph shows no pattern between sugar concentration and plant growth, it implies that sugar has no clear effect on plant growth. For the second question, using the same beaker, scale, and water source for all tests represents keeping certain factors constant, which is the concept of constants in an experiment.

Answer:

1. B. Sugar has no clear effect on plant growth
2. B. Constants