Answer:
protection of air, land, water, biodiversity, and the renewable natural resources
Explanation:
Due to the urbanization and also the advancement of the technology in the 20th century, many natural resources like air, water, land and biodiversity started to get exploited.
There is the increase in the levels of the pollutants in air and water and land is being degraded. There is non stop use of the natural resources and not taking the care of their sustainability.
Thus protection of these natural resources emerged as a major issue then.
Answer:
He might have conquered more land and spread Greek culture into Asia. Could have had the biggest empire the world had ever seen.
Explanation:
<span>The United States have had a trade deficit over the past two decades because the nation had a persistent trade deficit. Since the 1970s, The United States had entered into a trade deficit, from trade surplus. This started because Japan and Europe started trading and competing with US, in a range of industries.</span>
I think its mathematics,i could be wrong but i would mathematics