The correct answer are: C. heat, and E. pressure.
All metamorphic rocks need this two factors so that they can be formed from either igneous or sedimentary rocks. The metamorphic rocks form deep into the ground where the pressure is higher and the temperature is higher as well, the deeper they form the bigger the pressure and temperature they experience. According to how big of a temperature and how big of a pressure the rocks have been exposed it determines into what type of metamorphic rocks they will turn into, and according to that what kind of a texture and appearance will they have. The amount of time of exposure to heat and pressure is also key to the type and quality of the metamorphic rocks.
The terrestrial planets ranked in order of decreasing atmospheric density are Venus, Earth, Mars, Mercury. A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System. It is the terrene planets are the inner planets nearest to the Sun.
Cities create their own micro climates and produce large amounts of solid waste, photo chemical smog, and sewage
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Answer:
Your answer will be (a) polder.
All mass isn't all together in one area but is actually more spread out.