Answer:
1.Only recently have scientists been able to measure the amount of CO₂ in the atmosphere and how quickly the rate is increasing. Up until 1950 the levels of atmospheric CO2 were pretty steady at 300-‐310 ppm (that's parts per million out of all the molecules in the air).
2.Levels of carbon dioxide in the atmosphere rise and fall each year as plants, through photosynthesis and respiration, take up the gas in spring and summer, and release it in fall and winter. Now the range of that cycle is expanding as more carbon dioxide is emitted from burning fossil fuels and other human activities.
Explanation:
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An Encyclopedia it's pretty much a book giving many different ways to say a word
Answer: It illustrates the loving bond between grandfather and grandson
Explanation:
The author included the imagery because it illustrates the loving bond between grandfather and grandson.
This can be seen in the excerpt as we were informed that the old man pulled a pocket knife from his back pocket and then cut the jugs, taped the balloons and gave them to the grandson to make a pinata form. This shows the love and bond that they shared.
The answer is B indicates a state of questioning