A solution that contains all the solute it can hold under the given conditions is ___

Trey is conducting an experiment to determine which fish food causes the most goldfish activity over a period of two weeks. He i

mr_godi [17]

Answer:

This question is incomplete as it lacks options, the options are:

Which change would be the most effective way to improve the validity of this experiment?

A) Increase the number of goldfish in each tank.

B) Increase the daily amount of food for each tank.

C) Create another group that is fed regular fish food.

D) Increase the number of tanks in each treatment group.

The answer is C

Explanation:

According to this question, an experiment is conducted by Trey to determine which fish food causes the most goldfish activity over a period of two weeks. In this experiment, the independent variable is the FISH FOOD which are; Swift Salmon food and Fast Flounder food. Other variables such as type of gold fish, amount of fish food, amount & type of water etc.

One of the ways to improve an experiment, which is lacking in this case is to have a CONTROL GROUP. Based on the fish foods used for each group, it is obvious that all groups in this experiment are experimental. Hence, creating another group that is fed regular fish food will serve as the CONTROL GROUP in order to compare with the experimental groups. This will improve the validity of the experiment.

8 0

3 years ago

Read 2 more answers

How do you complete this circuit?

ale4655 [162]

Explanation:

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7 0

4 years ago

A weightlifter curls a 25 kg bar, raising it each time a distance of 0.50 m. How many times must he repeat this exercise to burn

anyanavicka [17]

42 times must he repeat this exercise to burn off the energy in one slice of pizza.

What is energy?

Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.

Energy burn by the weightlifter = potential energy

Potential energy = mgh

Potential energy = 25.(9.8)(0.50)

Potential energy = 122.5 Joule.

Assume 25% of efficiency so energy burn = 122.5*25/100

energy burn = 30.625 joule

Number of times = 1260/30.625

Number of times = 42 times.

42 times must he repeat this exercise to burn off the energy in one slice of pizza.

To learn more about energy refer to the link:

brainly.com/question/1932868

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