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zloy xaker [14]
3 years ago
9

Ms. Landford's class is learning to design experiments. The students know that they need to ask a testable question before desig

ning an experiment to answer the question.
What is a testable question the students could ask and then design an experiment to answer?

A. Ms. Landford's class has 12 boys and 13 girls.

B. If a plant is turned upside down, which way will the roots grow?

C. Do squirrels like to climb trees?
Biology
2 answers:
Dovator [93]3 years ago
5 0
A testable question is B. If a plant is turned upside down, which way will the roots grow?
The other options are incorrect because you cannot create some kind of experiment to prove them right or wrong.
Hope that helped you.
Westkost [7]3 years ago
5 0

Answer:

B. If a plant is turned upside down, which way will the roots grow?

Explanation:

A scientific experiment needs to investigate something, to be established later. For this reason, it is important that when carrying out an experiment, a "testable question" is established so that an answer with scientific confirmation is sought.

This testable question must be something that we do not know the answer to, as it is up to the experiment to answer and show facts that prove it. For this reason, we can say that among the options given in the question above, option "B" shows a coherent testable question for an experiment.

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Answer:

The correct answer is D)

Cycle energy and matter to support the biosphere as a closed energy system

Explanation:  

The earth as we know it is a closed energy system that is, matter cannot be introduced or removed from it. Sometimes, rare meterites enter into the system with minimal or no disruption.

Also, energy can enter and leave. The energy mostly referenced here is the sun.

Within the earths system, the lithosphere, hydrosphere, and biosphere materials and energy go through a cycle which helps to support life.

For example, water when heated up by the sun rises as vapour from the earth and oceans into the atmosphere where it cools and condenses. When it cools and condenses, it , in the form of rain, comes down on the earth and oceans. As rain falls down to the earth and runs off the rocks, rocks are broken down into smaller fragments and soils.  The hydrosphere comprises of all water bodies on earth. Besides the vapours which are evaporated from the same into the atmosphere, when volcanoes erupt they also send vapourised water into the atmosphere.

So because the earth is a closed system, a change in one sphere effects a change in others. An example is a change in the water cycle.

Cheers

8 0
3 years ago
Can you plz tell me if these are correct asap
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Answer:

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