It is 4. because it says in the paragraph and I quote: "helium has a very low density. it is used in daily weather balloons to carry instruments that record, tempature, humidy, and pressure readings in the atmosphere.
Answer:
im thinking its C. im taking it rn
Explanation:
they sell advertising space on television, newspaper, TV, etc
They can write a list of what they can to improve the environment with everyone else, and maybe have a discussion about how they can participate in the class activity of tree planting.
Answer:
i would say the third answer
Explanation:
