When scientists use the law of superposition to determine the age of a fossil, they go by the principle of 'every undisturbed layer of rock is older than the layer above it. This is not the most precise way of determining age, and in fact this method can only reveal the approximate age, but not the exact one.
Answer:
Disadvantages of Exports
Fluctuation in foreign exchange rate. ...
Economic conditions in importing country. ...
Political conditions in importing country. ...
Change in regulation in importing country. ...
Rivalry between nations. ...
Socio barriers. ...
Higher working capital requirement. ...
Credit risk.
I guess the answer is NO-3.
Tree planting, because it will fight it by creating more plants. :) hope this helps!