List and briefly describe the major evolutionary events that allowed plants to successfully inhabit land.

compost can be added to topsoil as a:

pesticide

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.

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate