Answer:
The history of the Black Plague serves to project the environmental and economic consequences of the current coronavirus pandemic, given the similarities between both historical events.
Thus, the Black Plague implied, like the current pandemic, an almost total cessation of economic activities at the global level, causing a consequent increase in poverty rates, with the consequent decrease in the population's standard of living.
But, on the other hand, the decrease in production during the Plague had beneficial effects for the environment, since it decreased the increasing rates of environmental pollution at that time. In this sense, a similar situation is being experienced in the present, since restrictions on certain activities and circulation in general have slowed down the already advanced global pollution process.
Explanation: It was one of the largest cities of the ancient Indus Valley Civilization, also known as the Harappan Civilization, which developed around 3,000 BCE from the prehistoric Indus culture. ... Mohenjo-daro was the most advanced city of its time, with remarkably sophisticated civil engineering and urban planning.
B. Limiting trade with a country punishes it by hurting its economy. (correct for APEX)
Answer:
Metre. ... The metre is defined as the length of the path travelled by monochromatic light in a vacuum in 1299 792 458 of a second.
Explanation:

the spinning wheel to produce textiles, the water wheel used to power machinery and the steam engine were invented. These inventions aided in speeding up the production of manufactured items.