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sergiy2304 [10]
3 years ago
14

What group of protists is thought to be the main source of earth's oil deposits?

Geography
1 answer:
Yanka [14]3 years ago
5 0

The answer is; plankton

The major group of plankton that contribute to earth’ crude oil are phytoplanktons because of their  great numbers – even though they are microscopic. They are the base of the food chains in the oceans because they are the main primary producers. Examples of phytoplankton are the dinoflagellates, cyanobacteria,  diatoms and blue-green algae.


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High-level radioactive waste is derived from fission systems such as nuclear power plants.

Explanation:

When nuclear fuel is generated, the material that results from the process is still highly radioactive although it is not efficient to generate electricity. This byproduct is still harmful and it is labeled high-level radioactive waste. Although nuclear fuel is not the only one that generates this type of waste, it is the most common concern from the Manhattan project, for instance.

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How might upward growth of cities be a better choice than outward growth?
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5 0
3 years ago
how does the pandemic affect food demand and whose food security and livelihoods are most at risk due to the pandemic ?​
Lostsunrise [7]

Answer:

1. The pandemic has negatively affected food demand. A United Nation forecast shows that by the end of 2020, about 132 million people would experience chronic hunger in the world. This is an addition to the 690 million people already hungry today.

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a. Vulnerable groups such as migrants, fishers, small-scale farmers, children who are dependent on school meals, sick individuals with special food needs.

b. Developing countries and underdeveloped countries. Small island developing countries are also at risk because they depend on the importation  of food.

Explanation:

The Food and Agriculture Organization of the United Nations reports an increase in food demand across the world with the onset and persistence of the pandemic. As at 2019, 690 million people the world over were experiencing chronic hunger. The onset of the pandemic resulted in the addition of 132 million people to this number.

Vulnerable groups such as;

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e. The sick with special food requirements will also be affected.

6 0
2 years ago
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