Answer: The solid is a mixture
Explanation:
Here's the complete question:
If a solid contains some particles that melt at 50°C and other particles that melt at 110°C, what must be true about the solid?
A. The solid is an element.
B. The solid is a mixture.
C. The solid is a pure substance.
D. The solid has three boiling points.
It should be noted that an element consist of an atom but in this scenario, there are different particles that also have different melting points. Therefore, it's not an element, but rather a mixture.
Also, the solid in this case is not a pure substance and doesn't have three boiling points.
Therefore, the correct option is B.
The study of earthquakes is seismology. Scientists (seismologists) use instruments to record the strength of earthquakes in an area. The instrument that is used to measure seismic waves is called seismograph. <span>It records the shaking of the Earth. </span>The size of an earthquake is measured with its magnitude and intensity.
Answer:
Air to water
Explanation:
as medium changes speed also changes
<span>A. Finance/Administration Section Chief
IS THE </span>Section Chief which is responsible for ensuring that assigned incident personnel are fed and have communications, medical support, and transportation as needed to meet the operational objectives<span>
</span><span>
NOT:
</span>B. Planning Section Chief
C. Operations Section Chief
D. Logistics Section Chief<span>
</span>
Answer:
The diagram has no problem
Explanation:
Exactly correct
