Answer:
False
Explanation:
Mass of Particle: Heavier particles will move more slowly and so will have a slower rate of diffusion. Smaller particles on the other hand will diffuse faster because they can move faster.
One of the reasons for the success of the smallpox eradication campaign was that small pox only occurred in humans. Smallpox is an extremely contagious and deadly virus for which there is no known cure. it is caused by two variants, Variola major and Variola minor. it is a disease of the past that was eliminated by worldwide vaccination.
Answer:
lead pencils (graphite)
fertilizer (potassium, sodium, calcium)
chalk (gypsum)
flashbulb (zirconium)
window glass/mirrors (silica)
table salt (halite)
Explanation:
Professional presentations is about making an impact on the audience. Your slides of the presentation should look perfect and should arrange in a sequence.
What makes a good professional presentation?
If we want to design our professional presentation in a beautiful manner then we have to write introduction first, then on the second number we should write body, and in last we should to write conclusion. Our introduction needs to briefly sum up that the audience don't get bored, we need to talk about only what is going on in presentation. Tell the audience about advantages, disadvantages as well as about the uses.
So we can conclude that: Professional presentations is about making an impact on the audience. Your slides of the presentation should look perfect and should arrange in a sequence.
Learn more about Professional presentation:brainly.com/question/14605443
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Answer:
I'm not really certain about this but my answer would be (a)
