Describe any four development tasks which will be show drastic differences in a three year and a thirteen years old girl

1) Holding a proper conversation.

2) Receiving a set of simple tasks and completing them.

3) Using strategy in a game.

4) Coordination in throwing and catching a ball.

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.

it's c.us forest service