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Answer:
Mutualism type of relationship exists between the algae and fungi that form lichen.
Explanation:
In algae and fungi, Mutualism type of symbiosis is present. In Mutualism, both the organisms that is algae and fungi gets benefits from each other. Fungi absorb water and nutrients from the environment and supply these nutrients to the algae. Algae produce food materials and provide it to fungi.
C the ozone hole does not affect the global temperature
Answer:
Mass extinction occur when the environment is not favourable.
Explanation:
Mass extinctions occur on the earth when there is sudden change in the environmental conditions for an organisms that is not good for the survival of that particular organisms so they extinct from the earth surface. The example of mass extinctions are dinosaurs. These dinosaurs were extinct due to change in their environment that decreases the availability of food for them so due to no available food, the dinosaur extinct from the earth.
