PLEASE HELP ME IM SO LOST Smog is a major health concern in many major cities, including Los Angeles, California and Beijing, China. Engineers in China are working on an anti-smog bike, which will take in air, remove pollutants, and release cleaner air. What social and cultural impacts of this solution need to be considered?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

_is a product of the first stage of photosynthesis.atpglucosecarbon dioxidewater

Explain the process that creates the heat of the sun?