Grinding quartz crystals down to produce sand is an example of aa. change of state.
c. chemical reaction.
b. chemical change.
d. physical change. Please select the best answer from the choices provided A B C D

Answers

Answer 1
Answer:

Grinding quartz crystals down to produce sand is an example of a physical change. Correct answer: D Physical change is a change of the form of a chemical substance, but not its chemical composition. And this is exactly what grinding quartz crystals is. A physical change differs from a chemical change in that new substances are formed.

Answer 2
Answer: The answer is D because the chemical makeup has not changed. It is still the same quartz just looks different. 

Hope that helps! God bless!

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Which of the following agencies is the federal source for the EMT education standards? A. Department of Health and Human Services B. National Highway Traffic Safety Administration C. Federal Emergency Management Agency D. Department of Transportation

Answers

Answer:

B. National Highway Traffic Safety Administration is the correct answer.

Explanation:

National Highway Traffic Safety Administration's purpose is to save the lives of the people roadways.

National Highway Traffic Safety Administration is the firm that is involved in reducing injuries, economic injuries, responsible for protecting the people on the roadways of America, advancing the motor wheel's protection and also reducing and preventing crashes.

Which type of insurance policy would someone get to protect others only?

Answers

This would be a liability insurance!

In a liability insurance, if some damage takes place, the money will not the paid to the person insured, but to a third party- here the "others" in the question. So this type of insurance protects the others from the damage that the insured person might cause.

Answer: life insurance

Explanation:

The fourth rule of firearm safety is "keep your finger _______ until ready to shoot."

Answers

Keep your finger off the trigger until ready to shoot.

Since 1900, how many people have been executed by the state that were probably or certainly innocent of the crimes that they were convicted of? A. 3 B. 11 C. 23 D. 57

Answers

C. 23

There were 23 people who were executed that are innocent of convicted crimes since 1900.

Answer:

C. 23

Explanation:

Executions and death sentences in the United States have remained at a historical low.

Since 1900, 23 people have been executed in one of the countries where the death penalty still prevails. The fall in the number of executions has to do with published data that reveal that 90% of the executions involved people with "significant evidence" of being in one of these groups: mental illness, intellectual disability, brain damage, severe trauma and in some cases, the group of the innocents.

Under the 22nd Amendment, what is the maximum term of the president? A.one four-year term B.two four-year terms C.two five-year terms D.one two-year term E.two six-year terms

Answers

B.two four-year terms

The maximum term of the presidency under the 22nd Amendment is still adopted until today.

Answer:

B.two four-year terms

Explanation:

The 22nd Amendment was approved in 1947 and ratified in 1951 and it established that a president that has been elected for 2 terms can't be elected anymore and also, it stated that no one can act as a president for more than two years in a term where another person was elected. This Amendent was made because at the time there were some concerns because there was no limit in the number of terms a president could serve and Franklin D. Roosevelt was elected for a fourth term.

Which of the following could be described as very far left supporters?a. Liberals
c. Conservatives
b. Radicals
d. None of the above

Answers

People who would be called as very far left supporters would be A - liberals. 

These are people who would like to see the nation progressing in various ways. Although this has been disputed more than onnce due to the random claisms that have been made from their positions in the past.