The ecosystem of the forest is formed by the interaction between the abiotic and biotic factors. Abiotic factors are the non-living factors: water, temperature,light,cloud cover, and soil. Biotic factors oh the other hand are the living organisms. Tropical rain forests<span> are hot, moist forests found near Earth's equator.</span> Temperate rain forests are cool and dry. Abiotic factors in temperate rain forest: 1. Temperature:The climate in the temperate rain forests is mild. 2. Water: moist and lush. 3. Light: many clouds block the sunlight. 4. Soil: nutrition rich. Biotic factors:<span>beavers, raccoons , cougars and black bears. </span>
Abiotic factors in tropical rain forest: 1. Temperature: hot, near the Earth's equator 2. Water:60
to 160 inches of precipitation
Biotic factors: the greatest
biodiversity in the world<span>, rubber and bamboo trees, sloths, anteaters, poison dart frogs, </span>
Answer: The environment changed suddenly from a shallow ocean setting to a river system.
Explanation: Changes seen in rock layers represent changes in Earth's local history. The rock layer stack overall shows a shallow ocean setting. But the youngest layer at the top was deposited by a river. This shows the geologist that the local environment changed suddenly from an ocean setting to a river system.