A cylinder of 50 litre capacity contains helium gas at a pressure of 200 atm and the temperature of 27°c. Assume that all of the gas can be used to fill a ballon which is released in air. At a height of 75000ft the volume of a ballon is 200m³ and its temperature is -53°c. What is the pressure of the gas inside the ballon?

The rate at which molecules water and oxygen can enter a cell is determined by the-

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things