I'd have to say gas because it usually doesn't change at all
Weathering is the best short term effect of water erosion. This causes the rocks to break down because of the water filling inside the cracks on the rocks. This might be reduced through using damps or conserving water. Too much of water spillage will cause water erosion. It is important for people to know how to conserve water in order to be safe from the long term effect of water erosion.
<span>The country is using all its resources efficiently.
</span>--- Pairs shifts PPC to the right arrow<span>
A new technology is invented to produce more food grains in the country.
--- </span>Both point on the original PPC arrow<span>
The country plans to produce goods that are not possible to produce with the available resources.
--- </span>Both unattainable point<span>
Many of the country’s young people died in an earthquake.
--- </span>Both shifts PPC to the left arrow<span>
</span>
