Answer:
The pre-metamorphic rock was a shale or mudstone containing organic matter
Explanation:
Graphite schist is a rock that is formed during the metamorphism of coal. This metamorphism can be either higher level or an intermediate level of metamorphism.
The various attributes of a Graphite schist are:
a. It has a metallic shine
b. It has a very soft texture
c. It stains paper easily.
Graphite schist contains graphite in a very high proportion.
The perennial system is less dependent on the Nile flood and allows the planting of multiple crops. (source: another brainly question)
Climate because your climate change control the weather
D.) high level of urbanization
This is because urbanization is a key element.
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The faintest star a person can see through a 10 metre telescope is 10 times fainter than a 1 metre telescope.
All the other things or characteristics are equal, given the fact that it is a refracting telescope, like the fact that
- it shows details 10 times bigger.
- the 10 metre telescope looks 10 times brighter.
The PW1000 is one such telescope that can be given as an example of a 10 metre telescope.
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