Answer:
Controlled variables include time, temperature, volume of solution being tested, and volume and concentration of reagent (Benedicts or iodine) used. Three unknown solutions will be tested for the concentration of reducing sugars using Benedict's solution.
Explanation:
I'm pretty sure the answer is B. Invest in alternative energy sources that do not burn fossil fuels. The reason I would pick B is because in Antarctica the ice is melting more and more over time because, cars and factors etc are burning fuels which result in more damage to the ozone layer.
Answer:
I know that its true that fish have 4 limbs and its also true that sharks have bony skeletons
Explanation:
D. (CH2O)n is the general formula