A science student makes the following statement: I think that plants grow faster in acidic soil than they do in normal soil. Which of these is the student doing?

The given question is incomplete. The complete question is as follows:

A science student makes the following statement:

I think plants grow faster in acidic soil than they do in normal soil.

Which part of the scientific process is this?

A. Analyzing data

B. Testing a hypothesis

C. Forming a hypothesis

D. Stating a theory

C. Forming a hypothesis

Explanation:

The given statement is a "hypothesis" formed by a science student.

A hypothesis form a relationship between independent variable and dependent variable. Independent variable is the variable that a researcher or scientist controls while dependent variable is the variable that a scientist observes and measures.

So, in the given statement, independent variable is the concentration of acidic and normal soil and dependent variable is the growth of the plant, that the student will observe.

Hence, Student is making a hypothesis and the correct option is "C".

d. the weight of the book

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.