1) Well, models are vital to use by scientists, because that way they can represent visually and help other people understand the point they are trying to stress about their project. A simple example would be to use a Bohr model to represent a specific chemical, and along with that show how many protons or neutrons does it have.
2)In science a universal law is a statement by which a particular action or a phenomenon would occur ALWAYS in the same way, and will ALWAYS abide to what the law states, while a theory is a guess on what kind of pattern does a particular phenomenon or experiment abide by.
3)The SI units are units of the metric system, and are used everywhere in the world for specific measurements, the kilograms is used when measuring mass, the meters is used when measuring length, the liter is used when measuring a volume of a liquid, and finally the cubic meters or m3 are used when measuring the volume of a solid. and those are the standards as well.
Answer:
I think it will be very risky
The effect was that she was very afraid anytime every time she is with or around the missionaries.
<h3>What is the effect about?</h3>
The Indian girl do not kindly see anyone from Caucasian race as a result of of all the land stealing.
Note that in the passage, Zitkala-sa tells that the missionaries' appearance is shown as "a cold race whose hearts were known to be filled with prejudice".
And this tells that she was very afraid anytime every time she is with or around the missionaries.
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When moisture is present in the atmosphere and temperatures are low enough, ice crystals will form and continue to combine with each other until the matter is heavy enough to actually fall to the ground.
Inside a cloud, tiny ice crystals latch onto very tiny particles of dirt or debris. When the matter is heavy enough, it falls.
Hope this helps you with understanding weather function.
I'm pretty sure it's the Revolutionary Period.