Ecosystem, food chains/webs, ozone depletion, waste management.
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Q1 · Our Environment · EASY
In a food chain, grasshoppers feed on grass and are eaten by frogs. The frogs are then consumed by snakes. What will most likely happen if all the frogs in this ecosystem are removed?
Q2 · Our Environment · MEDIUM
Which of the following human activities contributes MOST directly to the depletion of the ozone layer in the stratosphere?
Q3 · Our Environment · HARD
In a forest ecosystem, the energy flow follows this pattern: Plants produce 10,000 units of energy through photosynthesis. Herbivores that eat these plants obtain 1,000 units, and carnivores that eat the herbivores obtain 100 units. A student claims that if we remove all carnivores, the herbivore population will grow without limit. Which statement BEST evaluates this claim?
Q4 · Our Environment · MEDIUM
In a food chain, if 10,000 J of energy is available at the producer level, approximately how much energy will be available to secondary consumers?
Q5 · Our Environment · MEDIUM
If 10,000 J of energy is available at the producer level in a food chain, how much energy will approximately be available to the tertiary consumers?