B) +1 charge
C) -1 Charge
D) Essentially no mass
The paleoatmosphere refers to the Earth’s atmosphere in the geological past. The paleoatmosphere was dominated by nitrogen, carbon dioxide and methane. These gases are generated by the radioactive decay of Potassium. During this pre-biological atmosphere, it is thought to have been reducing, to have highly contained virtually no free oxygen, and virtually no argon. Therefore the major gases on this period are the Nitrogen and Carbon Dioxide.
b. air pollution
c. fertilizer use
d. none of the above
Meat contamination because humans do not eat air or fertilizer so meat contamination is the only logical answer.
B. Diffusion
C. Active transport
D. Phagocytosis
Water leaves the cell by osmosis when placed in salt water.
When a cell is placed in salt water, water leaves the cell by osmosis. Osmosis is the movement of water molecules across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
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Answer:
Atomic Radius can be simply defined as the distance between the last shell of electrons and the nucleus of an atom.
Answer: The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons. Illustrated Glossary of Organic Chemistry - Atomic radius. Atomic radius: The radius of an atom. This distance between an atom's nucleus and outer electron shell. ... Atomic radius differs with the bonding state of an atom (for example a nonbonded atom of an element versus the same element within a covalent bond). Atomic radius is determined as the distance between the nuclei of two identical atoms bonded together. The atomic radius of atoms generally decreases from left to right across a period. The atomic radius of atoms generally increases from top to bottom within a group.
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