A beaker about two-thirds full of a liquid. check all that apply. pour using tongs. wear chemical resistant gloves. taste to make sure it is hcl. One should wear chemical resistant gloves.
It is not at all possible to pour the liquid with the help of tongs because it may spill and cause harm, in case it is hazardous.
Also tasting whether the liquid is hcl or not is not gonna help because we don't know whether the chemical is fatal or not. Even if it is Hcl, tasting it is not a good option, because it will cause damage to our tongue and other parts of mouth.
Thus the most convenient thing to do is to wear chemical resistant gloves to ensure safety.
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The Spanish word "<u>arqueólogo</u>" best translates to archaelogist.
The world arqueólogo is a Spanish word which refers to the study of human activity through the analysis of material culture.
- The underlined word in the sentence is "El <u>arqueólogo</u> está mirando esos dinosaurios"
- The Spanish word arqueólogo is best translated to the word "<u>archaelogist</u>" in English
In conclusion, the word that best mean the underlined Spanish word in English is "archaelogist"
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The technique to improve internal validity is D) Addition of a control group.
<h3>What is
internal validity?</h3>
Internal validity serves as the study which bring about the establishment of a trustworthy cause-and-effect relationship that can be found in treatment and an outcome.
it should be noted that Internal validity also helps to eliminate alternative explanations , hence, The technique to improve internal validity is D) Addition of a control group.
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COMPLETE QUESTOIN:
Which of the following is a technique to improve internal validity ____________?
A) Experimenter expectancy
B) Participant bias
C) Use of a confederate
D) Addition of a control group
A. Partnership
Not sole proprietorship (more than one person)
Not corporation
Answer:
The astronaut was asleep longer on earth then he was in space
Explanation:
calculate the boring stuff (speed, time) and it shows that he was asleep for a greater value in space