Major Ecosystems MCQs

1. Which statement is incorrect?

Average rainfall in temperate deciduous forests is 750-1500mm
The temperature of coniferous alpine and boreal forests is up to 10 degrees
Northern coniferous forests are called Taiga
Coniferous forests located at high latitude are alpine
✅ The correct answer is option D.

2. Weather refers to

Short-term fluctuations in temperature, cloud cover, wind and precipitation
It prevails over periods of hrs or days
Overall patterns of weather that prevail from year to year
Both a and b
✅ The correct answer is option D.

6. Which statement about the profundal zone is correct?

Plants are unable to anchor but enough light penetrates to support photosynthesis
Phytoplanktons in this region are cyanobacteria
Decomposers and detritus feeders inhabit it
Water lilies are abundant
✅ The correct answer is option C.

7. Eutrophication is

The process of decreasing nutrients by human activities
Adequate nutrition accelerated by human activities
Changing the trophic levels of an ecosystem by human activities
Addition of more predators in an ecosystem
✅ The correct answer is option B.
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