Answer:
TRUE
Explanation:
No biological system is completely closed.
A nutrient cycle is the movement and exchange of both organic and inorganic matter back into the production of matter. This cycle is a recycling system which always occurs no matter what.
In a system that looks closed (closed loop), nutrients may be limited because they are not cycled through the system fast enough and/or it is not possible to compensate for deficiencies by migration.
Plastic can lead to the destruction of habitats and wildlife. In the ocean, many sea animals and birds are dying from choking on these toxins. It can take hundreds or even thousands of years to break down the plastic, causing the environmental damage to be long lasting.
Continents has shifted millions and million years ago
the answer is actually A. chemical weathering by oxidation .
chemical weathering works on rocks that contain iron. These rocks turn to rust in a process called oxidation. Rust is a compound created by the interaction of oxygen and iron in the presence of water.
The answer is: "<span>denitrification" .
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