A new shampoo claims to significantly increase hair growth. To test this, researchers conduct an experiment in which subject A uses the shampoo once a day for 30 days but subject B does not. After 30 days, subject A has had significant hair growth compared to subject B. Should the results of this experiment be used to support the product claims? a. No. The experiment does not include enough subjects in each group.
b. Yes. The experimental design is sound.
c. No. The experiment does not include a control group
d. Yes. The results support that the shampoo does what it claims.
e. No. The results do not support that the product does what it claims.

According to the law of conservation of energy, energy can neither be created nor destroyed. if this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes