Answer:
The correct answer is option A - plants lived near the poles, but landmasses have drifted to current locations
Explanation:
A couple of theories are in support of this motion such as Wegener's Continental Drift Theory and the Theory of Pate Tectonics.
Calhoun was vice president of the United States in 1824 under John Quincy Adams and was re-elected in 1828 under Andrew Jackson. Jackson was for the Tariff of 1828 and caused Calhoun to be opposed to Jackson, which led to Calhoun's resignation in 1832.
With the Continental Drift theory.
Answer:
Age is a problem for both types of countries, here's why
Explanation:
In developing countries age is a problem because this state has to provide jobs and care for growing children, and providing education for them is expensive and time consuming, not to mention basic needs like housing and food. It's hard for developed countries too because these countries have to deal with an older population that is declining in health. The state needs to provide assisted living and care for this part of the population.