The Telegraphy was the first to send coded messages over a wire in a matter of seconds
During the twentieth century, the study of the large-scale structure of the universe evolved from the theoretical to the practical; the field of physical cosmology was made possible because of both Einstein's theory of relativity and the better ability to observe extremely distant astronomical objects. Option A is correct.
Albert Einstein formulated two theories which he included to his theory of relativity. On the one hand the special relativity and on the other hand, general relativity.
The former refers to the lack of gravity and the physical phenomena that occurs because of it and the latest refers to the law of gravitation.
Option (C) castes is the correct answer.
Answer:
The answer would be Recession.
Explanation:
Slow Economic activity with prices low and many people out of work is the main sign of Recession.
Recession is the term used in Macroeconomics, which refers to the significant decline in the economic activity of a country. This recession can happen in a country, or countries or in the whole world. Almost all of the economic indicators show a fall. Main economic indicators that indicate the overall condition or situation of the economy may include, Gross Domestic Product GDP, Household Income, Business Profits, Investment Spending, etc. These indicators fall where as the other indicators like unemployment rate, unemployment claims, bankruptcies, etc rise.
So when the general economic activity slows down, and many people are out of the work, it is the indication of Recession in the economy.
