Because they were getting decomposed by the microorganisms in the air.
all the plants and animals died
Asteroid Impact : Plants and organisms that performed photosynthesis died, and many animals that depended on those plants for food died, too Volcanic Eruptions : The volcanic dust blocked the sun's energy from reaching Earth's surface, causing plants, and animals to die.
they grew crops and gathered berries and they ate smaller animals because big animals died from the food it had somthing in the plants,and the climate changed.
They stay on the ground and eventually decay.
They died.
Tiny remains of animals and plants in streams come from the mountains. When it rains, these remains are washed down the mountains toward the streams.
they fell asleep and died to a hockey rink
Plants are the building blocks of life. Without plants, animals like vegetarians would starve and the animals that eat the vegetarians would starve and so on. The whole animal kingdom is dependent on plants. So if say plants some how all died, we would be in a lot of trouble.
Settlers took plants and animals with them to America and brought back American plants and animals
coal
because they didnt have enough supplies.all their animals died so they had to pull it themselfs and they got exhausted...
Animals depend on plants because without plants, nothing would have oxygen, lack of oxygen results in death. Also herbivores(animals that feed strictly on plants) depend on plants for food, if the herbivores all died out, all the carnivores(animals that feed strictly on meat) would also die out. Without plants or animals omnivores(animals that feed on plants or animals, humans are omnivores) would also die out. Resulting in a mass extinction.~