Answer:
The Permeable rocks are rocks such as sandstone, chalk. The Impermeable rocks are rocks such as clay, slate, marble, and granite. Sometimes however, they do vary.
Explanation:
A permeable rock is a rock that has interconnected pores and allow passage of fluids and impermeable rocks are rocks that do not allow fluid to flow.
Organization of Petrochemical Exporting Countries
I think c. Is right because pollution can contaminate the entire world if we don't work together
Enlightment and other things
The correct answer is - Greenhouse effect.
The Greenhouse effect is a process in which certain type of gasses in the lower atmosphere manage to trap the heat that is radiated from the surface of the planet.
The gases that are considered to be greenhouse gases are able to perform such a thing, despite being relatively low in amount compared to other gases, because they have much more complex molecular structure.
The molecular structure of this gases enables them to trap the heat, or rather to not allow to leave the atmosphere and return it back toward the surface, thus having huge effect on the climate.
Greenhouse gases are the carbon dioxide, methane, water vapor, nitrous oxide.