On a clear night, a student notices that a star in the constellation
Orion is much brighter than the
star next to it. What observation has the student made?(see picture for choices)

What is the temperature of one mole of helium gas at stp?

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

Can someone me with 1 to 4 plz. fast