Which are statements that are true about ecosystems? Hunters have a part in balancing the earth's ecosystems. In a healthy ecosy
stem, the removal of one organism will have little effect on the rest of the ecosystem. The sun is the primary source of energy in an ecosystem. Your backyard is an ecosystem. The health of an ecosystem is sometimes improved by human activities. Producers return nutrients to the soil.
Negative human impact of the environment is pollution we cause by waste and many other things. Positive human impact is the humans helping clean up the environment and help stop as much pollution as they can.
Answer: In some parts of the world, windblown dust and silt blanket the land. This layer of fine, mineral-rich material is called loess. Loess is mostly created by wind, but can also be formed by glaciers. When glaciers grind rocks to a fine powder, loess can form.
When granite is exposed to elements such as wind and water, it weathers and erodes and the particles are deposited. Pressure causes these and other particles to form sandstone at Earth's surface. ... Increased heat and pressure will change the sedimentary rock into metamorphic rock.
