Precious metals are rare, naturally occurring metallic chemical elements. They tend to be less reactive than most elements, are usually ductile and have a high lustre. Precious metals have high economic value. Examples are: gold,silver and platinum. Gems on the other hand are minerals or rocks that can be cut, shaped, and polished into beautiful stones. Examples include emerald, ruby and sapphire.
Both precious metals and gems are rare and valuable.
Answer:
"plainer headdresses and fewer neck-rings"
"belts hung with small crocodile heads"
"the heads and shoulders of two tiny Europeans"
Explanation:
These are all details that would help a reader visualize the plaque being described. If an author wants a reader to be able to visualize something that he is describing, then he needs to provide lots of details that appeal to the reader's senses. This will enable the reader to better imagine such a picture in his mind. In this example, all of these options provide lots of visual details that create a picture in the reader's mind.
The difference in elevation in meters between the points X and Y is 360.
Explanation:
On the presented map we can see that the relief is depicted with contour lines. The contour lines are marked with their elevations, or rather the main contour lines are, every fifth one. We also have the contour interval, which is 20 meters, thus giving us the basis so that we can find the difference in elevation between any points on the map.
What we know for sure from the map is:
- the elevation is increasing from southeast toward northwest
- the difference in elevation between the contour lines is 20 m
- the difference in elevation between the main contour lines is 100 m
Point X is marked on the contour line of 1,600 m. Point Y is marked on the second contour line between the 1,200 m and 1,300 m contour lines, thus:
2 x 20 = 40
So we have 1,240 m. Having the elevations of the two points, we only need to take the lower value from the larger value:
1,600 - 1,240 = 360 m
So we get a result of 360 m of difference in elevation between the points X and Y.
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B. Built on drained and filled lake beds.
Mexico city was built on drained and filled lake beds. The following reasons were the motivations for altering the lake beds and draining it in order to build a city.
1. To reduce the risk of flooding.
2. To protect the city from being invaded.
3. To prevent diseases from spreading.
4. In order to mine the gold under these lake beds
~Hello there!
Your question: The members of the Delian League paid protection money to Athens in case of an attack from the __________.
Your answer: The members of the Delian League paid protection money to Athens in case of an attack from the Persians.
The answer is option A.
Any questions ^?
Happy Studying!
