Answer:
the water cycle how water evaporates from the surface of the earth, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation.
the series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.
Answer:
Density (near r.t. ) Carbon (from Latin: carbo "coal") is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table.
Explanation:
Group 7A, the Halogens contain metalloids such as Astatine.
Answer:
Lateral interactions between protofilaments are in general homotypic. The heterotypic interactions are weaker because these interactions involve the mix of different protofilaments within the microtubule
.
Explanation:
Microtubules are cytoskeletal polymers that are formed by tubulin dimers in a head-to-tail arrangement (protofilaments).
