<em>Answer:</em>
- All of these answer are used in models.
<em>Explanation:</em>
The use of models is fundamentals tool in science. Scientists used the models to observe phenomena which happen too slowly, or happen too quickly or may to large or small process and how to extent it may dangerous for firsthand. They used different model depending upon whether which type of question is investigating.
Answer:
B.
Explanation:
The air molecules of warm air has higher energy. It causes them to move away from each other
Answer:
A positive ion has more protons than electrons and a negative ion has more electron ions
So the answer is
A positive ion has less electrons and a negative ion has more electrons
Answer:
The dirty dozen.
Explanation:
This is mainly seen in the control of hazardous waste and its regulations through treaty in the control of persistent organic pollutant(POPs). This regulation is seen to occur in 12 widely used persistent organic pollutants; these are seen to have the ability to absorb and store tissues that make them fatty especially in humans and also animals found in the higher trophic levels or in the food web. That being said, it can be noted that the dirty dozen can move or even attain hundreds, or thousands of levels towards the environ and also in other cases, transporting them through air or water as the case may be.
In order to perform the experiment, in identifying the
temperature of different kinds of liquid freeze—the needed equipment is the
thermometer. It is because the thermometer is an equipment that helps in
determining a temperature. The variable in the experiment would be the
temperature as this is not consistent for the effects or outcome will likely
change.