Ques:Q: The zeros at the end of a number are known as what? Read this paragraph and choose the correct option from the provided answers: Trailing zeros, which are zeros at the end of a number, are significant only if the number has a decimal point. Thus, in 1,500, the two trailing zeros are not. Choices: - rest zeros - edge zeros - remaining zeros - trailing zeros A:

Ans:trailing zeros
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Ques:Q: What is group 16 of the periodic table referred to? Read this paragraph and choose the correct option from the provided answers: Group 16 of the periodic table is also called the oxygen group. The first three elementsoxygen (O), sulfur (S), and selenium (Se)are nonmetals. They are followed by tellurium (Te) ( Figure below ), a metalloid, and polonium (Po), a metal. All group 16 elements have six valence electrons and are very reactive. Oxygen is a gas at room temperature, and the other elements in the group are solids. Choices: - sulfur group - dioxide group - acid group - oxygen group A:

Ans:oxygen group
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Ques:Q: What is a change in the sequence of bases in dna or rna called? Read this paragraph and choose the correct option from the provided answers: A change in the sequence of bases in DNA or RNA is called a mutation . Does the word mutation make you think of science fiction and bug-eyed monsters? Think again. Everyone has mutations. In fact, most people have dozens or even hundreds of mutations in their DNA. Mutations are essential for evolution to occur. They are the ultimate source of all new genetic material - new alleles - in a species. Although most mutations have no effect on the organisms in which they occur, some mutations are beneficial. Even harmful mutations rarely cause drastic changes in organisms. Choices: - radiation - infection - evolution - mutation A:

Ans:mutation
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Ques:Q: What do you call a condensation reaction in which an ester is formed from an alcohol and a carboxylic acid? Read this paragraph and choose the correct option from the provided answers: An esterification is a condensation reaction in which an ester is formed from an alcohol and a carboxylic acid. Esterification is a subcategory of condensation reactions because a water molecule is produced in the reaction. The reaction is catalyzed by a strong acid, usually sulfuric acid. When the carboxylic acid butanoic acid is heated with an excess of methanol and a few drops of sulfuric acid, the ester methyl butanoate is produced. Methyl butanoate has the scent of pineapples. The reaction is shown below with both molecular and structural formulas. Choices: - transesterification - esterisation - decarboxylation - esterification A:

Ans:
esterification
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