C. both a and b
Based on my knowledge of energy conversation, Both A (Manufactures can increase a light bub's....) and B ( Energy can be conserved by turning off light when they.....) which makes you C the correct statement.
Answer:
World-wide, mutual dependence
Explanation:
Perceived as each country depending on, and depended on other countries. Comes from the importing and exporting of goods and services.
Answer:
Several factors contributed to the fall of the Western Roman Empire, including the socioeconomic and political instability of the empire, the Germanic invasion and the invasion of other so-called "barbarian" tribes, the rapid rise of the Eastern Roman Empire, and more.
The moon is nothing but a oight mirror of the sun. So some light from the sun lights a part of the moon(depending on it's position) . On different days the moon has different position(taking sun as reference) so it is diferently lighted. This creates the phases
Answer: A. The Nazis promoted German nationalism and used propaganda to convince Germans that Jews were naturally enemies of Germany.