Generally, food chains are short because of

Q: Generally, food chains are short because of

Generally, food chains are short because of energy losses at each trophic level ✓ the activity of decomposers the activity of consumers nutrient cycling Explanation Upper course: steep gradient, V-shaped valleys, waterfalls, rapids, vertical erosion. Energy used for erosion, little deposition. Middle course: wider valley, meanders begin, floodplain develops, lateral erosion. Balance of erosion and deposition. Lower course: wide floodplain, large meanders, oxbow lakes, deltas, levees. Mostly deposition. River slows as gradient decreases and load increases.

Question

Answer 1

Generally, food chains are short because of

energy losses at each trophic level ✓
the activity of decomposers
the activity of consumers
nutrient cycling

Explanation

Upper course: steep gradient, V-shaped valleys, waterfalls, rapids, vertical erosion. Energy used for erosion, little deposition.

Middle course: wider valley, meanders begin, floodplain develops, lateral erosion. Balance of erosion and deposition.

Lower course: wide floodplain, large meanders, oxbow lakes, deltas, levees. Mostly deposition. River slows as gradient decreases and load increases.