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This question has a two part answer. The first part is that an asteroid hitting the earth and the second part is massive volcanoes erupting around the world.
Answer:
Light; Carbon dioxide; Temperature
Explanation:
Light; There would be no photosynthesis if light is not present. The rate of photosynthesis increases with light intensity up to the certain limit that plant needs for photosynthesis.
Carbon dioxide; Without carbon dioxide photosynthesis is not possible. The rate of photosynthesis increases with carbon dioxide level up to the certain limit that plant needs for photosynthesis.
Temperature; Too high temperature will denature the plant photosynthetic enzymes and photosynthesis will be too slow at low temperature
The answer would be "plant-like protists". These protists make their energy on sunlight. This would make them a protist and a plant-like cell.
They can decrease property values. Sharp shells can litter beaches, cut feet and affect recreation and tourism. Overall, zebra mussels harm our environment, recreation and the economy of communities that depend upon healthy lakes and rivers.
