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ser-zykov [4K]
3 years ago
14

The oceanic crust is composed of dark igneous rocks called __________; whereas the upper continental crust has an average compos

ition of a __________ rock.
Geography
1 answer:
inysia [295]3 years ago
4 0

Answer:

Basalt, sedimentary rock.

Explanation:

  • The reason why the continental crust differs from the oceanic crust is much different in its compositions. The continental crust is thin and less dense , is made of sedimentary and metamorphic rocks than the oceanic crust and is made of lighter elements. The tectonic plates move the composition to the rocks.
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South Africa, it's a city in India
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3 years ago
1) Scientists do not agree on the causes and effects of global climate change. What is your opinion?
Gnesinka [82]

Answer:

My opinion as follows.

Explanation:

  • Scientists are of the opinion that global warming is a root cause of prolonged human interference with the natural environment and its due to the natural environment is contaminated by people and their technology the scientist all around the world are focusing on the positive and negative effects of climate change.
  • This change that has brought by the artificial use of nature by man for his survival and destruction of the earth that the Holocene epoch is going to create when it ends will be fatal for the planet.
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8 0
3 years ago
Food security means that everyone has an adequate amount of nutritious food to lead healthy lives. Compare food availability in
Ghella [55]

Answer:

Food security comprises of availability, access, utility and stabilization.

Explanation:

Food security is a measure to check the availability of food to individuals and their affordability being a prime factor. In other terms, it means that everyone has a sufficient amount of health food i.e it can be measured by calorie intake per person to lead healthy lives.

Food availability in developing countries is cause and an effect of several factors like poverty, status, political stability and infrastructure etc. Most of developing countries in the world have an undernourished or are malnourished population . Mostly in the African countries and the Asian countries like Afghanistan, Domenico republic of congo and Mexico which is dealing with acute food insecurity. As compared to developed countries like in Australia and North America have low food insecurity but they still face global water crisis, land degradation and impact of climate change along with food wastages.

Programs that help developing countries reach food security goals.

Use of genetically modified crops.

Boosting agricultural science and giving agricultural insurance.

Making food security gender-equal.

Reducing land-use changes.

3 0
3 years ago
which tool is best suited to determine which minerals are present in a rock sample while working in the lab
Bas_tet [7]
There are many ways to determine what minerals are present in a sample. You can observe its color, streak, luster, magnetism, cleavage and hardness. Obviously, you can see what color it is and whether it is metallic or cloudy, but other tests may be required. Streak is tested by rubbing the mineral onto a streak slab of concrete to see what color the powder is. Magnetism is determined by putting a magnet next to the sample, or placing it next to a dish of iron filings. Cleavage is determined by cracking the sample to see the way it fractures. Finally, to determine hardness, you scratch test rocks with the sample, like as controls. I hope this answered your question. (Also, questions like this would best fit under chemistry, because geography is the study of political land)
6 0
3 years ago
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