Answer:
2
Explanation:
The two DNA strands intertwine around each other to form a double helix.
The correct answer is C. sewage discharge.
Even though there might even be no harmful pathogens at all if there isn't any waste, it is correct because it is implied that there is waste such as fecal matter inside of the sewage discharge.
Answer:
Hi! I think is drinking water
Answer:
D.->6N
Explanation:
This is because <-2 N + -> 8 N
= <-2 N + -> 2 N + -> 6 N
= 0 N + -> 6 N
= -> 6 N
