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fgiga [73]
3 years ago
12

What are three main components of magma

Geography
1 answer:
Tpy6a [65]3 years ago
6 0

Answer:

- Liquid (molten metals/rocks)

- Silica

- Gasses

Explanation:

The magma is a product of the mantle layer. The temperatures in this layer are very high, and the pressure is also much higher than on the surface. This leads to creating a melt out of the rocks/metals in it, thus creating a thick liquid out of them. Apart from the liquid of molten rocks/metals, a major component of any magma is the silica, which actually determines its behavior ones it reaches the surface of the Earth. The third important component of the magma are the gasses. The gasses are forming bubbles in the magma, and depending on the amount of silica, they can remain trapped and than cause explosions on the surface, or they can escape the magma easily if the magma is not highly viscous.

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What are the impacts of relief on the biophysical and socio_ economic conditions of ethiopia?
Tpy6a [65]

Answer:

The principal biophysical constraint for the production of cereals in Ethiopia is land degradation in the form of soil. According to Shiferaw, the rate of soil erosion is severe in the highlands of Ethiopia. Rapid population growth, cultivation on steep slopes, clearing of vegetation, and overgrazing are identified as the main factors that accelerate soil erosion in Ethiopia Biophysical effects of climate change on the production of cereals are claimed to be positive in some agricultural systems and regions, and negative in others, and these effects are claimed to vary over time. In a nutshell, The direct and indirect effects of climate change on agriculture play out through the economic system, altering prices, production, productivity, food demand, calorie availability, and, ultimately, human well-being.

The production and flow of cereals in Ethiopia are constrained by socio-economic constraints like poor infrastructure (constraining access to both agricultural inputs and markets for outputs), dominance by small-scale resource-poor farmers, shortage of draft power, low level of modern farm inputs; inefficient working habit (less working days per week) of the peasants; substantial increase in food prices; and endemic poverty, limited access tocapital and global markets, ecosystem degradation, complex disasters like war and conflicts; population growth. For instance, the availability of financial services is constraining the capacity of smallholders and emerging commercial farmers to adopt improvedagricultural practices. This includes both short-term seasonal credit for crop inputs and medium-longer-term finance for capital investments.

8 0
2 years ago
What did martin luther king jr?
Semmy [17]
Mr. Luther King Jr. stood up for all races to be equal. He believed that nobody should be treated with disrespect because of their skin color. He also gave many famous speeches. I hope that's what your question was asking.
8 0
3 years ago
Which of the following statements about geographic boundaries is false?
Neko [114]

Answer:

c

Explanation:

6 0
3 years ago
Read 2 more answers
The barrier islands<br> protect the mainland<br> from: (Georgia btw)
MAVERICK [17]

The barrier islands shelter and protect the mainland from the powerful forces of wind, waves, tides, currents and the ravages of storms and hurricanes. They shelter the estuaries that form behind the barriers.

Barrier islands form as waves repeatedly deposit sediment parallel to the shoreline. As wind and waves shift in keeping with weather styles and neighborhood geographic features, those islands constantly pass, erode, and grow. They can even disappear entirely.

Key Biscayne is a barrier island found at the bottom give up of a sequence of islands that stretches alongside the southeastern coast of Florida. Barrier islands are construct-united states of sand that shape alongside the coast of larger land bodies.

Barrier islands are critically crucial in mitigating ocean swells and different hurricane events for the water systems at the mainland aspect of the barrier island, in addition to defensive the coastline. This efficaciously creates a unique environment of exceedingly low strength, brackish water.

Learn more about Barrier islands here:-  brainly.com/question/1647030

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6 0
2 years ago
How many 1/3 -cup serving are there in 4 cups?​
ser-zykov [4K]

Answer:

Twelve 1/3 cup servings.

Explanation:

Each cup has 3 1/3 cup servings, 1=3/3. There are 4 cups, so multiply 3 1/3 cup servings by 4, and you get 12/3 = 12*1/3

4 0
3 years ago
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