A gravel covered plain is called a Reg. A reg is a desert basin where the sand has been blown away leaving a gravel covered plain.
The polar ice capes, the change in genetics of certain animal fossils (growing more or less hair, etc. etc.)
Answer:
1. Applying <u>the principle of original horizontality</u> -indicates that layers were repositioned from a flat-lying orientation.
2. Magma intrudes into layers of sedimentary rock and displaces them. We can deduce that the intruded magma that crystallizes is younger than the surrounding sedimentary layers by applying <u>the principle of crosscutting relationships</u>.
3. While visiting the Grand Canyon, you are amazed by the depth of layers of sedimentary rock before you, <u>the law of superposition</u>-- is evident here where progressively younger layers have formed over time and are stacked upon each other.
4. A fault cuts through layers of limestone, sandstone, and conglomerate. The surrounding layers must be <u>older</u> than the fault.
5. A mass of granite has inclusions of surrounding sandstone. The sandstone and surrounding layers show evidence of uplift over time. The granite must be <u>younger</u> than the sand deposits.
Answer:
Use materials more resistant to chemical weathering.
Explanation:
In the context of a warm and humid city, it is important to use building materials that are not extremely susceptible to chemical weathering. Buildings made of brick and/or iron and steel will survive much longer in the elements in a tropical condition than will a building made of wood or calcite. The latter is especially vulnerable to even the slightest amount of acidity in the rain and is easily dissolved.
I’m pretty sure he or she is correct ^^
