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Mashcka [7]
3 years ago
12

Why land is so scarce and expensive in South Africa?​

Geography
1 answer:
9966 [12]3 years ago
3 0

Answer:

Land is an essential natural resource, both for the survival and prosperity of humanity, and for the maintenance of all terrestrial ecosystems. ... Increased demand, or pressure on land resources, shows up as declining crop production, degradation of land quality and quantity, and competition for land.

Explanation:

Hope you apreciate my answer hehe

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What are three ethical safeguards used in psychology research?
Viktor [21]

First, there were two independent clinical psychologists who were present or on call 24 hours a day. They had the power to intervene and to remove anyone from the study if they thought they were in distress.

Second, we had paramedics and security guards on hand and ready to intervene at a moment’s notice if anything untoward happened in the study.

Third, the study was constantly monitored by members of a five-person independent ethics panel. This was chaired by a Member of Parliament and also included members of the Holocaust Educational Trust, the Howard League for Penal Reform, the BBC’s Independent Editorial Policy Unit and a senior academic psychologist. This committee had the power to change the way the study as a whole was run and to terminate it if they had ethical concerns.



http://www.bbcprisonstudy.org/bbc-prison-study.php?p=27

4 0
3 years ago
Why is putting rock layers in order by age useful to geologist?
iVinArrow [24]
Rock layers in order is basically natures calendar.

The highest layer is the newest formed layer 
While the deepest layer was the oldest and probably has been there from some time
And everything in between goes accordingly

So putting rocks in order by age helps scientists better understand what was there before what and how the rocks changed over time.

Hope this helps!
Brailiest is always appreciated if you feel its deserved! :)
6 0
3 years ago
The Mediterranean Sea has very little sediment churned up and suspended in its waters, mainly because of the absence of any subs
anygoal [31]

Answer:

Because of its relatively small size, different parts of the Mediterranean Sea are essentially equidistant from the Moon and Sun. So one part is not pulled with any appreciably different than any other part. This results in extremely tiny tides.

Tides in Black Sea

The results of a numerical modelling and observations reveal for the semidiurnal tides the presence of an amphidromy with clockwise rotation and another one with counterclockwise rotation for the diurnal tides, both located in the central part of the sea near the Crimean Peninsula. Therefore, it can said that there are tides in the Black Sea.

Tides in Great Salt Lake

The Great Lakes shows a disparate measurement of 5–7 cms during the Spring Neap Tides. also The Great Salt Lake has measurable tides, but they are still just a few inches at most. The rest of the time, this difference may not be noticeable in water bodies less massive than the Oceans, but with the way the Earth rotates into and out of the water, hanging there in space, it’s moving beneath all water.

However, theoretically, lakes must experience tides but the tides would be so small that even in the largest lakes the effect is masked by river inflows and wind and so on, all of which cause greater differences in water height than tides presumably must, so the latter are unmeasurable.

Tides in my country reservoir

Tides occur mainly in oceans because that is basically one huge body of water that is free to move all over the earth. Lakes and rivers do not cover enough area to have their water be moved significantly by gravitational force, or in other words, to have tides.

In reservoir, the same forces are at work, but in miniature. How much tides range depends partly on the size, depth and slope of the water’s basin. On seacoasts, where the basin stretches halfway across the globe, tides range about 6 to 10 feet.

Tides in a glass of water

It can be possible to see a tidal effect in a glass of water but a very sensitive device would be required to measure the minuscule change in the water depth along the glass walls, because the differences in the strength of the gravitational field between each side of the glass are essentially zero. Because of this the force exerted on the glass is the same, but due to the small volume of water in a glass as opposed to an ocean it would be very hard to measure any change. However, the difference in the strength of the gravitational field between the side of the Earth closest to the Moon and furthest to the Moon is enough to pull water more towards the side close to the Moon.

Moreover, because the differences in the strength of the gravitational field between each side of the glass are essentially zero. However, the difference in the strength of the gravitational field between the side of the Earth closest to the Moon and furthest to the Moon is enough to pull water more towards the side close to the Moon, causing high tide for that part of the world.

Explanation:

Tide is an alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon and sun.

The height of tides is proportional to the cube root of the thickness of water measured on a line drawn to the centre of the body of water from the moon. Lakes tend to be quite shallow but oceans will be miles deep.

7 0
3 years ago
What african country is surrounded by senegal on three sides?
gulaghasi [49]

Answer:

Gambia

Explanation:

3 0
3 years ago
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What is the principle of original horizontality
frosja888 [35]
It states that layers of sediment are originally deposited horizontally due to the effects of gravity.
7 0
3 years ago
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