Author: Study Clue

In eutrophication, the most direct trigger after fertilizer-rich runoff enters lakes is A Instant fish growth B Reduced water volume

In the water cycle, the step that directly forms clouds from water vapour is A Evaporation step B Precipitation step

For safe drinking water at home, the best basic practice is A Store in open buckets B Boil and cool

In many towns, the largest use of freshwater is usually for A Domestic daily needs B Space travel C Volcano

Which statement best explains why water is called “our lifeline” for humans A Needed for life processes B Only for

After heavy deforestation, which chain of effects is most scientifically correct? A More humus → more erosion B More roots

If a top predator disappears from a forest, the most likely first effect is A Producers stop growing B Decomposers

When a forest is called a “biodiversity storehouse,” it mainly means it has A Only one species B Many life

In a forest food web, the main role of herbivores is to A Make their own food B Eat producers

Forests are called “lungs of Earth” mainly because they A Make artificial oxygen B Reduce soil minerals C Increase desert