Letter D is the correct answer.
In order for minors to participate in research, <u>there is no need of documentation of minors' assent. </u>Federal regulations only require voluntariness and informed consent; the subjects have to participate in research by free choice and be adequately educated about the study they are participating in.
Hard Money is given political parties , While soft money is given for voters education because Hard money is given in the form of political donations which are tightly regulated through federal election Commission and limits are been set up on the Amount of money that can be used as donations during Election campaign whereas Soft Money can be defined in the form of unregulated donations which are not subject to strict laws and made directly to political parties without any limitations for the voters education
Answer:
The correct answer is c) a chemical change, because a gas was produced.
Explanation:
Sometimes when performing scientific experiments in laboratories, chemical changes are obtained in the elements that have been used, a chemical change is an alteration in the structure of a compound, so the element is different than at the beginning of the experiment.
Generally, when there is a chemical change this is usually irreversible; For example, in the case of Nio, he experiments with yeast, water, and sugar, which puts it in a bottle and closes it with a balloon, this mixture of substances has resulted in a chemical change since the element is transformed in gas.
<em>I hope this information can help you.</em>
Thanks to modern technologies, like the Internet, the customer reviews have gained a lot of importance for companies and they aim to receive good feedback from them. For example, when you are going to buy something on Amazon, would you buy a 1-star item or a 5-star one? Some companies have even hired people to write good reviews for their products online. So, instant communication and sales for customers is one of the most important factors when rating a product or a company because it shows: (1) Businesses can be available for customers 24 hours a day. (2) Customers can purchase goods and services online. and (3) Customers can give feedback to producers instantly
