Need this answered asap

The big bang was the occurrence of two singular atoms making contact with each other in the endless void. It's considered to be the beginning because atoms make up everything. So when those two atoms made first contact it was a huge "bang" creating everything.

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]