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frozen [14]
3 years ago
14

Which of the following human activities can increase the risks of flooding? a. cultivation b. planting trees c. soil management

d. widening rivers Please select the best answer from the choices provided A B C D
Biology
2 answers:
Liono4ka [1.6K]3 years ago
5 0
The correct answer is a.cultivation
shtirl [24]3 years ago
4 0

Correct answer choice is :


<h2>A)  Cultivation </h2><h2 /><h3>Explanation:</h3><h3 />

Flooding of farmland can produce in crop loss. Livestock, pets, and other animals are usually carried away and sink. Humans can get trapped in the high-velocity flood waters and can drown in the water. Floodwaters can reduce waste, trash, and toxic pollutants that can make the secondary outcomes of health dangers.

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1. Greenhouse gas -  Without greenhouse gases, the Earth would be a frozen planet.

2. Increase of oxygen - The increase of oxygen caused a cooling event.

3. Asteroid impacts  - Asteroid impacts caused climate catastrophes

4. Tectonic plates - Tectonic plates can warm or cool the planet

5. Cloud covering- Cloud cover complicates global warming

Explanation:

Explanations;

1. In the greenhouse effect, gases in the Earth’s atmosphere (such as carbon dioxide, methane and nitrous oxide) trap infra-red radiation from the Earth that would otherwise be radiated to space. Thanks to this natural process, the Earth’s surface has an average temperature of 15°C w1. Without these gases, our planet would be an icy -18°C, and life as we know it would not be possible.

2. Some 2.5 billion years ago, there was no oxygen in the Earth’s atmosphere. Although the Sun was less bright back then, our planet was habitable partly because the atmospheric concentration of methane was 1000 times greater than it is now. All this changed, however, with the Great Oxygenation Event, which was triggered by the presence of blue-green algaew5. These microscopic organisms had evolved to carry out photosynthesis, and they produced oxygen as a waste product.

3. Around 66 million years ago, the 10 km diameter Chicxulub asteroid collided with the Earth, resulting in the demise of the dinosaursw7. The impact threw dust into the stratosphere, which is thought to have blocked out 50% of the sunlight reaching the Earth. This would have compromised photosynthesis and led to the collapse of food chains. It would also have resulted in a dramatic fall in global temperatures, plunging the Earth into an ‘impact winter’ that would persist for a decade.

4. The Himalayan mountain range – formed as a result of the collision between the Indian and Eurasian tectonic plates – is a prime example of how plate tectonics can have an impact on climate. Over the past 50 million years, the slow uplift of the Himalayas has exposed new rock to chemical weathering. In this process, carbon dioxide from the atmosphere binds to certain minerals in the rock, reducing the amount of atmospheric carbon dioxide and cooling the planet.

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Just ask for more explanation, hope this helps.

6 0
2 years ago
Plasma:________
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5 0
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As an overall result of the citric acid cycle, NADH atoms?
Komok [63]

<u>Answer:</u>

As an overall result of the citric acid cycle, NADH atoms are produced.

Option: (B)

<u>Explanation:</u>

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  • The NADH molecules are produced from the reduction of NAD+ ion in the krebs cycle/citric acid cycle.
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