A student has a job after school delivering flowers and helium balloons. The student noticed that the volume of the balloons differed depending on the time of the year. They had a greater volume during the summer months and appeared to lose volume during the winter months after arriving at the destination. The student know each balloon had the same amount of gas and the balloons had no leaks. The student wants to understand why this happens. What would be a good hypothesis using the student's understanding of gas laws?
A. Balloons lose air with time, so they will lose volume.
B. The pressure at the store is different than at the destination causing the volume of the balloon to change.
C. The volume of a balloon is dependent on the time of year. Summer balloons have greater volume than winter balloons.
D. When the gas in balloons is warm, the balloons will be larger than when the gas is cold,

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

What is the relationship between wind and ocean waves? question 17 options: wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves. wind moving at higher speeds will transfer energy over a larger part of the ocean water, resulting in waves with a shorter wavelength. winds moving at higher speeds with cause water to move forward at faster rates, causing larger ocean waves. winds moving at higher speeds will affect deeper water, resulting in waves that move at a faster rate. how do temperature and salinity affect deepwater currents? question 15 options: as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?