A balloon allows water but not sugar to pass through it. The balloon contains a 10% sugar solution. A beaker contains a 5% sugar solution. Which statement is true?
When placed in the beaker, the balloon will lose water by osmosis.
When placed in the beaker, the balloon will gain water by active transport.
When placed in the beaker, the balloon will gain water by osmosis.
When placed on the beaker, the balloon will lose water by active transport.

is this for the e2020 class

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

geologic time scale (for gradpoint) =)