The answer is hill hope it's helps
A trapezoid is a type of quadrilateral that has an opposite pair of parallel sides; at lest, that definition seems pretty accurate to me.
Answer:
B.
I could wrong that because there many theory.
I choose B that because my feelings think B make any sense?
Answer:
Explanation: Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.
<span>1. nitrogen
</span>a biogeochemical cycle that cycles material by fixation, assimilation, ammonification, nitrification, denitrification, and the food chain <span>
2. phosphorus
</span>a biogeochemical cycle that cycles material by weathering, erosion, tectonic activity, and the food chain
<span>
3. tectonic
</span>a geochemical cycle that cycles material by mantle convection, subduction, and seafloor spreading <span>
4. carbon
</span>a biogeochemical cycle that cycles material by photosynthesis, respiration, and the food chain <span>
5. hydrologic
</span>a biogeochemical cycle that cycles material by evaporation, condensation, precipitation, and transpiration <span>
6. rock
</span>a geochemical cycle that cycles material by weathering, erosion, deposition, cementation, and metamorphism
Hope this answers the question. Have a nice day.
