Decomposers are an important part of many chemical cycles. Somecarry out aerobic respiration, and some use anaerobic respiration as they break down organic matter. Explain why decomposers are so crucial for the cycling of matter in ecosystems.

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

How does human environment effect the biosphere

Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.