EVERYDAY SCIENCE

Detailed explanation-1: -Answer and Explanation: This statement is true: Matter is constantly recycled in ecosystems. Individual atoms take countless trips through biogeochemical cycles, passing through living things, air, water and/or rocks and soil.

Detailed explanation-2: -In ecosystems, both matter and energy are conserved. Energy flows through the system-usually from light to heat-while matter is recycled.

Detailed explanation-3: -Energy and matter are conserved during ecosystem processes As energy moves through an ecosystem, it changes form, but no new energy is created. Similarly, as matter cycles within an ecosystem, atoms are rearranged into various molecules, but no new matter is created.

Detailed explanation-4: -Water, carbon, nitrogen, calcium and phosphorus flow through ecosystems and are recycled and reused. These minerals may move from the abiotic portion of the environment into living things and back again.

Detailed explanation-5: -Unlike the one-way flow of energy, matter is recycled within and between ecosystems. Elements pass from one organism to another and among parts of the biosphere through closed loops called biogeochemical cycles, which are powered by the flow of energy.