Why might a scientist say that an animal is becoming rare because of habitat destruction?

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

Overtime the pond slowly becomes more acidic due to the release of chemicals from a nearby factory. which of the organisms would most likely survive the change to their environment?

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations