Answer:
A
Explanation:
The energy carried by electromagnetic waves is sometimes referred to as radiant energy. Electromagnetic waves do not require a medium for propagation hence they can travel through vacuum and are known to transmit enormous amount of energy.
Electromagnetic waves transmit energy away from the source of the wave. Hence the answer chosen in the answer section above.
Answer:
the use of prokaryotes to clean up pollutants
Explanation:
Bioremediation, also called biological remediation, is a technique used to minimize the environmental impacts caused by pollution.
In this process biological degrading agents are used, particularly microorganisms (bacteria, fungi, yeast, enzymes, etc.), which detoxify areas contaminated by pollution. That is, we can say that bioremediation includes the use of prokaryotes to clean pollutants.
In bioremediation, prokaryotes remove or neutralize various toxic pollutants (organic and inorganic) from the environment, which are present in soils, waters (surface or underground), among others.
The microorganism used in the biological remediation process metabolizes and digests the contaminant. Consequently, it releases carbon dioxide (CO2) and water (H2O). A notorious example where bioremediation can be used is in the contamination (of soils or water resources) by petroleum and its derivatives.
Water stratification is a phenomenon in which regions of water with different properties, such as salinity, oxygen content, density and temperature, form barriers to mixing of the water.
These barriers also create channels, referred to as sound fixing and ranging (SOFAR) channels. In these channels, the sound has a specified path. It travels slower than normal, but due to reduced dissipation to the surroundings, the sound travels for larger distances.
Answer:
The nitrogen gas must be changed to a form called nitrates, which plants can absorb through their roots. The process of changing nitrogen gas to nitrates is called nitrogen fixation. It is carried out by nitrogen-fixing bacteria. The bacteria live in soil and roots of legumes, such as peas.
