The la brea tar pits in los angeles are the site of millions of fossils from the ice age. woolly mammoths, giant sloths, dragonflies, and other plants and animals from this era have been found in these pits.
scientists at the tar pits discovered that many of the smaller animals they extracted from the pits still exist around los angeles today. but many of the larger mammals—such as woolly mammoths and saber-toothed tigers—are now extinct.
why do you think this is the case? what can scientists learn about los angeles’ climate history by studying the specimens found in these tar pits?

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.

c. is the correct answer

if, i suppose that a bee stings me swinging my hand away from a bee. then that if, i persist patient when a bee or wasp areas on your surface to investigate a scent or to take h2o and i secreting heavily, the bug ultimately will move of its personal agreement. if i don't need to set for it to disappear, lightly and gently wipe it off with a part of the paper.