Answer: b. property different minerals can have the same color
Explanation:
Minerals can be identified by its colour, appearance and luster. However, different minerals might have almost the same color which makes it difficult to identify and distinguish. Further tests needs to be carried out to properly identify a mineral.
Answer:
c=49 degrees
b=131 degrees
Explanation:
Angle c and the angle that measures 49 degrees are opposite angles. Opposite angles are equal to each other, so we can conclude that angle c is equal to 49 degrees.
c=49 degrees
Angle c and angle b are both sitting on a straight line, and a straight line has an angle measure of 180 degrees. To find angle b, we can subtract 49 from 180.
b=180-49
b=131 degrees
Therefore,
c=49 degrees
b=131 degrees
I hope this helps!
Answer:
Radioactive isotopes are unstable and will decay. ... The isotopes will decay into a stable isotope over time. Scientists can tell how old the rock was from looking at the radioactive isotope's half-life, which tells them how long it would take for there to be half the radioactive isotope and half the stable isotope.
Superposition is the geologic principle which explains why the bottom stratum in a section of rock is the oldest. The word literally means placing one thing on top of another where the lower strata are the older.
Answer:
1 - a
2 - e
3 - d
4 - b
5 - c
Explanation:
Horn can be simply defined as the pyramidal peak that is formed at the high elevated region that are mostly covered by ice. This is formed when the glaciers erodes three or more aretes.
Mass wasting refers to the downward movement of rocks, or broken fragments or sediments that are primarily caused due to the influence of gravity.
Moraine usually refers to the accumulation of sediments and rocks that are mixed with ice, and these are unsorted in nature and are deposited when these particles are carried downward by the movement of glaciers.
Striations can be simply defined as scratch marks or grooves that are formed when rock undergoes thrusting or faulting.
Talus is defined as the accumulation of broken rock fragments that are found at the base of a mountain or cliff.
