I found that from April to mid-June there's an increase in the ground level ozone which creates smog (smog is created by the emissions from vehicles and smokestacks when they come in direct with sunlight.)
Nitrogen Dioxide (NO2) It comes factories, old cars from the 1900s, etc. it is a poisonous gas that comes from old engines can when breathed into the human body it can cause loss of fatigue, restlessness, anxiety, etc.. When it is released it gets stuck into the atmosphere but still gets stuck into the air but a small amount so little it can't harm large number of humans or animals.
Where are you taking the test? Cause depending on the place is relies on the answer?
Friedrich engles, though from a well to do family, established himself as a :
Revolutionary
He founded Marxist theory together with Karl marx
hope this helps
The correct answer to this open question is the following.
You forgot to include the options. However, we can say the following.
what the governments of the city-state of Athens and the Roman Republic have in common was that they were democracies. Of course, we are talking about the Roman Republic, because after the Republic, it began the times of the Roman Emperors.
In was first Solon, ruler of Athens, -the most important city-state in Greece- the one that started to recognize dome liberties for the Athenian people and made some reformations. But it was truly Cleisthenes, the one who allowed Athenian men to participate in elections to choose their rulers. So we can say that it was the origins of democracy, although in those Greek years is was a limited democracy.
Answer:
D.)change is an underlying theme to understanding expansion and encounters through history."
Explanation:
the changes are something inert to the human being and over time society goes through processes in which they can generate improvements for the entire population, step into the glacial ages, step in the discovery of America and generate processes in which everything improves and creates new knowledge and reason
