Which of the following statements about matter is true? Mass and matter are always the same. Matter is made up of atoms and has mass. Mass can decrease while matter increases. Matter does not exist in the biosphere.

Answers

Answer 1
Answer: The correct answer is Matter is made up of atoms and has mass.

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Ninety-nine percent of all the matter that can be observed in the universe exists asA. gases.
B. plasmas.
C. liquids.
D. solids.

Answers

Answer:

B. plasma.  

Explanation:

There are four main states of matter:

1. solid

2. Liquid

3. Gas

4. Plasma

Plasma is a state in which 99% of all matter present in the universe exists. It is highly conducting ionized gas. The electric field and magnetic field dominate the behavior of plasma. Plasma is electrically neutral but the positive and negative particles are unbound.

Plasma is the most common state of matter in the universe.

Plasma, the most abundant phase in the universe...

Which statement best describes the formation of diamonds? A. Diamonds form in kimberlites under very low pressure.
B. Diamonds form in kimberlites under very high pressure.
C. Diamonds form in talc under very high pressure.
D. Diamonds form in talc under very low pressure.

Answers

The correct answer would be (b.) Diamonds form in kimberlites under very high pressure. Kimberlites are one of the most important sources of the mined diamonds and these are formed with a very high pressure. The statement in (d.) would best describe the formation of diamonds.

um carro com uma velocidade de 80 km\h passa pelo km 240 de uma rodovia as 7:30. a que horas este carro chegara a proxima cidade, sabendo-se que a mesma esta situada no km 300 dessa rodovia?

Answers

From km 240 to km 300 there are 60 km.

The time to travel 60 km at 80km/h is t = d/V = 60km / 80 km/h = 3/4 h.

That is 45 minutes. Then the car will arrive at 7:30 + 45 min = 8:15.

When more than one force is acting on an object, the ____ determines the motion of the object.

Answers

When more than one force is acting on an object, the net force determines the motion of the object.

The net force of an object is expressed as a value, such as net force = 5, and the motion of the object will change depending on how high or low that value is. For instance, if the net force is 0, the object won't move unless it is already moving, but if it is larger than 0, its motion will change.

Which explains how the Coriolis effect causes air circulation? A.
Air from the equator moves toward the poles faster than the ground below it, so friction causes the air to veer west. In contrast, air from the poles moves toward the equator slower than the ground below it, so friction causes it to veer to the east.
B.
Air from the equator moves toward the poles faster than the ground below it, so friction causes the air to veer east. In contrast, air from the poles moves toward the equator slower than the ground below it, so friction causes it to veer to the west.
C.
Air from the poles moves toward the equator faster than the ground below it, so friction causes the air to veer east. In contrast, air from the equator moves toward the poles slower than the ground below it, so friction causes it to veer to the west.
D.
Air from the equator moves toward the poles slower than the ground below it, so friction causes the air to veer east. In contrast, air from the poles moves toward the equator faster than the ground below it, so friction causes it to veer to the west.

Answers

The right answer for the question that is being asked and shown above is that: "Air from the equator moves toward the poles faster than the ground below it, so friction causes the air to veer west. In contrast, air from the poles moves toward the equator slower than the ground below it, so friction causes it to veer to the east. "

In the steps of the scientific method, what is the next step after formulating and objectively testing hypotheses?A. interpreting resultsB. stating conclusionsC. conducting experimentsD. making observations and collecting data

Answers

Answer:

Option A

interpreting results

Explanation:

In a Scientific research, we first formulate and test hypothesis of the study. A hypothesis is a tentative guess in the study which should be validated in the process of the study. We may have a null and alternative hypothesis. After formulating the study, we conduct the actual study where we get raw data. The raw data is then analyzed, in many cases using statistical analysis tools such as R, python, excel spreadsheet etc. Therefore, the next step after formulating and objectively testing hypotheses is to interpret the results.

In the steps of the scientific method, the next step after formulating and objectively testing hypotheses is interpreting results.

Scientific method is an experimental method used in scientific research for evaluating a scientific hypothesis. The process of carrying out scientific method involves observation, then asking questions, followed by finding answers via carrying out experiments.  

The steps involved in the carrying out scientific methods includes the following processes:

  • observation or asking question
  • research topic formulation
  • formulating hypothesis
  • testing hypothesis or experimentation
  • interpreting or analyzing  result
  • report and conclusion

Therefore, we can conclude that in the steps of scientific methods, the next step after formulating hypotheses is interpreting results.

Learn more about scientific methods here:

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