Ques:You are presented with the question "An object that can be used for measuring mass of an object is similar to what playground item?" and the following answer choices: - forces - Slide - barrel - Seesaw - Merry-go-round - rockets - Monkey bars - matter Now knowing that abalance is used for measuring mass of an object and beam balances, like a seesaw, measure an unknown mass by comparison to known masses, choose the best answer.

Ans:Seesaw
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Ques:You are presented with the question "what have a negative impact on the environment" and the following answer choices: - harmful substances - groundwater contamination - harvesting - fish - major threat to health - Sulfur dioxide - storms - Greenhouse gases Now knowing that landfills have a negative impact on the environment and landfill leachates and groundwater contamination, choose the best answer.

Ans:groundwater contamination
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Ques:You are presented with the question "What is used in order for Maglev trains to function?" and the following answer choices: - coal - Energy. - electrically - energy - magnetism - diesel - tow rope - power Now knowing that magnetism can cause objects to repel each other and the maglev trains are pushed and speeded up by the fact that like poles attract and unlike poles repel, choose the best answer.

Ans:magnetism
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Ques:You are presented with the question "What bring amino acids to the ribosome in the correct sequence?" and the following answer choices: - Chemical energy - Aminoacylation - Dilution - a delta - Cooking - heat or cold - it needs them - A Greek letter Now knowing that molecules of tRNA bring amino acids to the ribosome in the correct sequence and aminoacylation is the adding of an amino acid to the tRNA molecule, choose the best answer.

Ans:
Aminoacylation
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