Jai was measuring the radioactivity of different radioactive isotopes. isotope a had a starting radioactive level of 50 g, and after 4 days it measured at 30 g. isotope b had a starting radioactive level of 75 g, and after 4 days it measured at 25 g. which best explains the isotopes?

Evaporation: this is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas). water vapour droplets join together to make clouds! condensation: this is when water vapour in the air cools down and turns back into liquid water.

So what you would do is go through and add 3 teaspoons(tsp) 6 times because of the 6 tablespoons(tbsp). which will give you an answer of 18. another way is to multiply 3x6=18.

Iknow this i just forgot the name