Answer: The correct answer is D: Infants have facial expressions similar to those of adults.
Explanation: Let's begin by answering why A, b and c are false statements.
a. A thumbs-up does not mean the same thing everywhere. Don't try doing a thumbs up in Greece! The meaning of gestures vary between cultures, neutral or positive gestures in certain cultures can have a negative meaning in other cultures.
b. Facial expressions are universal, according to Paul Ekman.
c. Smile means happy, frown means sad. Doesn't matter the geographical location.
Infants do have facial expressions similar to those of adults, and multiple theories explain how these facial expressions are learned and developed.
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.
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Answer:
Teach them how to fix the machine
Explanation:
If they just fix it for them, the issue will happen again and again, but if you teach them how to do it, this problem will stop occuring.
Answer: Testing
Explanation:
Testing because when you have done something once, you improve on it the second time because you have been exposed to it (exposed to it twice).
The statement about mountain ranges in united states and Canada that is false is : C.The rocky mountains are east of the appalachian mountains
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