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3 years ago

Multiple choice :

Geography

1 answer:

weqwewe [10]3 years ago

6 0

Answer: a)reserves or ores

Explanation: Ores or reserves are those naturally occurring material that are in the form of rock and have mineral inside them. The mineral present in it could be gold, iron etc. These mineral metals are extracted from ores . The ores are inorganic substance which are mined to get the extraction of the metal. Therefore , the correct option for the following question is reserves or ores.

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What is the natural ecosystem / biome in the Arctic?

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Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy

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3 years ago

Does Pakistan produce quality cotton? Which few factors support the growth of cotton in our country?

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yes

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3 years ago

Biologists estimate that the earth is losing several dozen species a day, causing an extinction crisis that could see _____ perc

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50%

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One in five species on Earth now faces extinction, and that will rise to 50% by the end of the century unless urgent action is taken.

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2 years ago

1. Which occurrence is not characteristic of global warming? (1 point)

USPshnik [31]

1. An occurrence that is not a characteristic of global warming is;

B. Stabilization in the sea level due to warm weather

A warming climate can cause seawater to expand and ice over land to melt, both of which can cause a rise in sea level.

2. A non-impact of global warming on ecosystem is;

D. Food and supplies increase

Climate change not only affects ecosystems and species directly

3. A factor that contributes to the strength of hurricanes is;

A. Warmer ocean temperatures

Hurricanes start simply with the evaporation of warm seawater, which pumps water into the lower atmosphere. Once hurricanes move over cold water or over land and lose touch with the hot water that powers them, these storms weaken and break apart.

4. A practice that does not protect the environment is;

D. Frequent usage of a SUV

Car pollution is one of the many major causes of global warming. Cars and trucks emit carbon dioxide and other greenhouse gases, which contribute one-fifth of the United States' total global warming pollution.

5. A vehicle that is most likely to be fuel efficient is the;

D. Gas-electric hybrid car

Hybrids are the most gasoline efficient of all cars

6. Scientists predict that global warming will cause Ethiopia to experience;

D. Greater frequency of drought-related conditions

The environment is directly impacted by drought. Drought can affect water sources, land, fish and wildlife and plant communities. A lack of water and reduced ability for soil to support crops can affect fish, animals and plant life.

7. A majority of the greenhouse-gas emissions released into the;

C. Carbon dioxide

Carbon dioxide (CO2) makes up the vast majority of greenhouse gas emissions from the sector.

8. The main human activity that contributes to global warming is;

E. Burning of fossil fuels

The burning of fossil fuels by humans is the largest source of emissions of carbon dioxide, which is one of the greenhouse gases that allows radioactive forcing and contributes to global warming.

9. A statement that is true regarding where pollution is most evident is;

A. Areas with a high population density

As people age, their bodies are less able to compensate for the effects of environmental hazards.

10. A human activity that would best support global efforts to improve the environment and to reduce global warming is;

B. Riding a bicycle to a nearby playground

Riding a bike provides a fairly fast and dependable mode of transportation that just happens to save money, getting fit and helping to reduce global warming.

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3 years ago

Read 2 more answers

When you ride a bicycle or run as fast as you can, your muscles begin to feel weak and they are sore afterwards. This is a resul

REY [17]

Answer: Anaerobic respiration or Fermentation

Explanation:

When we are engaged in intense physical activity such as running or riding a bike, the muscles need energy to function and they get this from aerobic respiration.

They will quickly run out of the oxygen required to sufficiently use aerobic respiration however and will turn to anaerobic respiration which can produce energy in the absence of oxygen.

As the body uses anaerobic respiration however, lactic acid is produced and builds up in the muscles. It is this lactic acid that leads to the muscles feeling sore.

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3 years ago