Answer :
The mass extinction of dinosaurs was likely caused by a large meteorite impact on Earth. This impact resulted in a darkening of the sky and had negative environmental effects, leading to the reduction in the sizes of some ecosystems.
Some scientists believe that the mass extinction of dinosaurs was caused by the impact of a large meteorite on Earth. This impact would have caused a darkening of the sky due to dust blown into the upper atmosphere. This darkening would have reduced the sizes of some ecosystems because of the environmental effects it brought.
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The reduced sunlight from the meteorite impact would hinder photosynthesis, leading to a collapse in the food chain and reduction in ecosystem sizes. Therefore, the correct answer is C. Reduced photosynthesis.
The mass extinction of dinosaurs is believed by some scientists to have been caused by the impact of a large meteorite. This impact would have caused a darkening of the sky due to dust blown into the upper atmosphere, leading to a reduction in sunlight.
This reduction in sunlight would have significantly hindered photosynthesis, the process by which plants produce energy from sunlight.
As a result, the primary food source for herbivorous dinosaurs would have diminished, leading to a collapse in the food chain and the subsequent size reduction of ecosystems. Therefore, the correct answer is C. Reduced photosynthesis.
Complete Question: -
Some scientists believe that the mass extinction of dinosaurs was caused by the impact of a large meteorite on earth. this impact would have caused a darkening of the sky due to dust blown into the upper atmosphere. this darkening would have reduced the sizes of some ecosystems because of:
Options:
A. longer seasons.
B. accelerated erosion.
C. reduced photosynthesis.
D. increased number of hurricanes.
