Ques:You are presented with the question "What stays the same when an item is made of a material?" and the following answer choices: - properties - color - height - kinetic energy - size - cycles - support - energy Now knowing that if an object is made of a material then that object has the properties of that material and properties can be used to separate or sort a group of objects or materials, choose the best answer.

Ans:properties
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Ques:You are presented with the question "Lack of which of the following can hinder the break down of food in the body?" and the following answer choices: - acid rain - water - salt - Weight - chemicals - recycling - sun - saliva Now knowing that digestion is the process of breaking down food into components the body can absorb and lack of salvia hinders digestion, choose the best answer.

Ans:saliva
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Ques:You are presented with the question "What does burning oil cause?" and the following answer choices: - Clean water - Dehydration - More oil - chemical reaction - Global warming - forest is destroyed - An ice age - hyperthyroidism Now knowing that gases released during the use of fossil fuels causes global warming and carbon dioxide is produced by the burning of fossil fuels such as coal, oil and natural gas, choose the best answer.

Ans:Global warming
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Ques:You are presented with the question "What differ strongly in appearance and are barrel shaped?" and the following answer choices: - bears - barnacles - abdomens - oxen - Leptospirosis - cacti - burrs - tunicates Now knowing that adult tunicates are barrel-shaped and tunicates differ strongly in appearance between the adult and larva, choose the best answer.

Ans:
tunicates
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