Answer: Researchers/scientists have decided that people are disturbing the nitrogen cycle by modifying the sum of nitrogen that's put away within the biosphere.
Explanation: Can I have brainliest?
Have a nice day c:
<span>they have fossils and pieces of the environment from the past inside of them</span>
The answer is C, loss of biodiversity due to an invasive species
<h3>
<u>Appropriate</u><u> </u><u>Answer</u><u>:</u></h3>

Nucleus is the control centre of the cell and manages all the cellular activities taking place inside the cell. It consists of four parts :-
- Nuclear membrane,
- Nucleoplasm,
- Chromatin material and
- Nucleolus.
The Chromatin material(Condensed - Chromosome) stores the cell's DNA which is transmitted to next generation.