Answer:
<u>Pandemic plague</u>
Explanation:
The Black death or the Great Plague occured during 1347 to 1351 in Eurasia causing death of almost 75 million to 200 million people. The cause of this plague was identified a bacterium known as <em>Yersinia pestis . </em>This plague outbreak was first major European plague pandemic and it killed almost 30% to 60% population of the Europe.
Answer: 6
Explanation:The number of protons present in the nucleus of an atom is known as Atomic Number. Atomic Number helps in determining the chemical properties of an atom. Thus it is given that the given ion contains 6 protons thus the atomic number of the ion will be six. hope this helps
1 valence electron is present.
Answer: conservative model
Explanation: DNA isolated after one generation produced a single band which was a higher and intermediate in density between the heavy and light Nitrogen isotopic DNA used, showing that the first generation was a hybrid DNA. This observation fit with the dispersive and semi-conservative models only. And so at this generation, the conservative model was discarded.
Answer:
C
Explanation:
A system is at equilibrium when the rates of opposing reactions are equal.
Answer A does not show the rate of reactions, it only shows concentrations of reactants.
Answer B only shows constants, it does not show rates of reactions.
