2 Apakah proses menyedut udara dan menghembus udara yang dilakukan oleh badan? TP1
What is the process of inhaling and exhaling air by the body?​

Rna polymeras should attache to the promoter.

Humans can affect weathering and erosion in several ways.  humans cause  increases in acid rain and pollution, which increase the amount of  weathering  agents in the air and water, and then on land.for an easy answer: 1) acid rain2) pollution

Iam not sure but to me it with be a or dsorry if i was late! hope this ! : )if you really want me to find out the answer that is correct tell me and i will do more research but the a or d makes sense to me.