Answer:
Role of organisms in the nitrogen cycle:
Bacteria play a central role: Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates. Bacteria of decay, which convert decaying nitrogen waste to ammonia. Nitrifying bacteria, which convert ammonia to nitrates/nitrites.
Explanation:
I THINK THIS IS SHORT AND EASY
This process is called endocytosis. Endo- means: within, inner, absorbing, or containing
Cryosphere, all Ice on earth, the gases melt the ice. Hydrosphere, once ice melts it turns into water. biosphere, lack of ice mean lack of habitat for some animal, penguins, polar bears etc.
1st one 2nd one and i believe 3rd one
10; 2%
Of the chemicals that fall under the TSCA 10% have been tested for toxicity and 2% have been tested for endocrine, nervous, or immune system damage.
The Toxic Substances Control Act (TSCA) is a law issued by the United States Congress and used by the Environmental Protection Agency (EPA) to demand for documentation and testing requirements, and restrictions associated with chemical substances. Other substances such as foods and drugs are mainly removed from TSCA.
