All categories

3 years ago

Why is copper mainly found in open mine pits

Geography

1 answer:

tester [92]3 years ago

6 0

Answer:

Open-pit mining, also known as open-cast or open cut mining, is a surface mining technique of extracting rock or minerals from the earth by their removal from an open-air pit, sometimes known as a borrow.

Explanation:

You might be interested in

With regard to farming, what do you think is the best use of chemicals and why?

makkiz [27]

Answer:

Explanation:Organic farmers are different from conventional farmers because they choose not to use any chemicals on their farm. This means that they never spray their fields with pesticides or spread any kind of chemical fertilizers. This also means that they never give their animals any non-organic feed or give their animals any drug past a certain age. For a farmer to be able to sell his product as certified organic in Ohio, the soil must have been chemical-free for at least four years. However, it varies from state to state. While in California your soil only has to be chemical-free for one year in some states it may have to be chemical-free for ten! Each organic farmer has his own reasons for choosing to farm organic. Some farmers do it because they feel that it is cheaper to farm organic. They don't have to pay for the chemicals, they get higher prices for their products and they can use a crop rotation to produce the same kind of crop yields. Other farmers do it because they feel that they are producing a healthier product. Most farmers choose to farm organic for a combination of those reasons and others.

6 0

4 years ago

Erika has received scores of 82, 87, 93, 95, 88, and 90 on math quizzes. What score must Erika get on her next quiz to have an a

nignag [31]

Her score is 85 the pattern is 5

8 0

3 years ago

Read 2 more answers

2. The list below shows the number of computer games a store sold each day for 11 days it was open. 27,28,29,35,35,36,37,42,43,4

Tanya [424]

The five-number summary for the data is 27, 76, 39.45, 32.42, 51.75.

<h3>How to do a five-number summary?</h3>

To do a five-number summary calculate:

The largest and smallest value
The mean
The first and third quartile

The largest and smallest value: In this case, the smallest value is 27 and the largest one is 76 as they represent the smallest and biggest number of products sold in one day.

The mean: To find it add all the numbers and divide the result into the total of values:

27 +28 +29 +35 +35 +36 +37 +42 +43+46+76 / 11 = 39.45

First quartile: Mean of numbers that are under the mean:

27 +28 +29 +35 +35 +36 +37/ 7 = 32.42

Third quartile: Mean of numbers that are over the mean:

42 +43+46+76/ 4 = 51.75

Learn more about number summary in: brainly.com/question/19029566

#SPJ1

5 0

2 years ago

How does granite differ from diorite? How does basalt differ from obsidian? How does rhyolite differ from tuff?

Mars2501 [29]

Answer:

granite is mainly composed of quartz and diorite does not contain quartz

Obsidian texture is glassy and basalt texture is large and vesicular

Tuff is medium hard and rhyolite is hard in the nature

Explanation:

granite differ from diorite

granite

(1) granite is mainly composed of quartz

(2) granite found in various colour like pinkish, white and black

diorite

(1) diorite does not contain quartz

(2) diorite spots if found in black, white and grey

basalt differ from obsidian

obsidian

(1) Obsidian texture is glassy

(2) Obsidian is found in vibrant colour like Orange , Red and yellow

basalt

(1) Basalt texture is large and vesicular

(2) Basalt is found in Black, Brown and Greyish Shade

rhyolite differ from tuff

rhyolite

(1) rhyolite is hard in the nature

(2) rhyolite is silica enrich igneous rock

tuff

(1) Tuff is medium hard

(2) Tuff is formed from volcanic ash that is come out during volcanic eruption

7 0

3 years ago

What type of map is this? Please be specific. (I am indicating all the lines that connect to one spot)

Andreyy89

I am not positive, but this looks like a navigation chart. you start in one area and the information disperses. hopefully this helps:)

5 0

4 years ago