Question

A major abiotic factor in fresh-water ecosystems is the
A. source of the water.
B. speed of the water.
C. width of the stream or river.
D. None of the above

Answer 1

Abiotic = Not Alive
The answer is B. Because the more speed the more oxygen.

Answer 2

Does this make sense to you?

Answer 3

Or do you want a more depth explanation?

Answer 4

ya i have one more question u think u could help me

Answer 5

Yeah sure.

Answer 6

_______________ is a marine ecosystem that includes mudflats, sandy beaches, and rocky shores.
A. An intertidal area
B. Polar ice
C. A coral reef
D. The Sargasso Sea

Answer 7

there it is

Answer 8

I think its A. Since it says "sandy beaches"
Explanation:
"The intertidal zone, also known as the foreshore and seashore and sometimes referred to as the littoral zone, is the area that is above water at low tide and under water at high tide (in other words, the area between tide marks). This area can include many different types of habitats, with many types of animals like starfish, sea urchins, and some species of coral. The well known area also includes steep rocky cliffs, sandy beaches, or wetlands (e.g., vast mudflats). The area can be a narrow strip, as in Pacific islands that have only a narrow tidal range, or can include many metres of shoreline where shallow beach slopes interact with high tidal excursion."

Answer 9

thx man all correct life saver

Answer 10

Ah just happy to help a fan :)