Suggest why there are no human fossil in coal.

Suggest why there are no human fossil in coal.
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1 Answer

Answer :

Ans: There were no human beings living on the Earth at that time. 
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Related questions

Explain how fossil fuel cause air pollution.

Description : Explain how fossil fuel cause air pollution.

Last Answer : Ans: When fossil fuels are burnt they produce harmful substances that cause air pollution and, in turn harm the environment.

a) What does crude oil look like? b) Explain why crude oil is a fossil fuel.

Description : a) What does crude oil look like? b) Explain why crude oil is a fossil fuel.

Last Answer :  a) Crude oil is thick and black. b) Crude oil is a fossil fuel because it was made from the dead bodies of microscopic plants and animals that once lived in the sea.

What is a fossil fuel?

Description : What is a fossil fuel?

Last Answer : Ans: A fossil fuel is formed from the remains of living things. Coal, oil, and natural gas are fossil fuels.

Suggest a good place to establish a wind farm.

Description : Suggest a good place to establish a wind farm.

Last Answer : Ans: b) A good place to establish a wind farm would be a windy location on land or out at sea. 

What is the wind farm?

Description : What is the wind farm? 

Last Answer : Ans: a) A wind farm has a large number of wind turbines in one place.

What is the main problem with wind power?

Description : What is the main problem with wind power?

Last Answer : Ans: The energy produced by wind is difficult to store, and electricity is only produced when the turbines are rotating. 

Give two examples of renewable energy sources.

Description : Give two examples of renewable energy sources.

Last Answer : b) The Sun, wind, and tides. 

What is a renewable energy source?

Description : What is a renewable energy source?

Last Answer : Ans: a) A renewable energy source is a natural energy source which can supply energy for millions of years without becoming exhausted. 

Explain how global warming can lead to the flooding of low lying areas.

Description : Explain how global warming can lead to the flooding of low lying areas.

Last Answer : Global warming will cause the ice caps at the Poles to melt which in turn will cause the sea level to rise, thus causing a change in weather patterns: more flooding will occur in the lowlying parts of the world. 

What is a global warming?

Description : What is a global warming? 

Last Answer : Ans: a) An increase in the amount of carbon dioxide in the air is increasing the greenhouse effect, which is causing the temperature of the Earth to rise. This is global warming. 

Name one other green house gas.

Description : Name one other green house gas.

Last Answer : methane

Explain why carbon dioxide is called a green house gas.

Description : Explain why carbon dioxide is called a green house gas.

Last Answer : Ans: a) Similar to a greenhouse, carbon dioxide is very good at keeping heat within the Earth’s atmosphere. This is why it is called a greenhouse gas. It has been very useful in making the Earth warm enough for human life to survive.

What happen to the heat energy that reaches Earth from the sun?

Description : What happen to the heat energy that reaches Earth from the sun? 

Last Answer : Ans: The layer of air which surrounds the Earth acts as an insulating layer. Carbon dioxide gas in the atmosphere absorbs the heat from the Sun and keeps it in thereby maintaining a specific temperature for life on Earth.

Name three gases that cause rain to be acidic.

Description : Name three gases that cause rain to be acidic.

Last Answer : Ans: carbon dioxide, sulphur dioxide, nitrogen dioxide 

Why are gases deposits found on top of oil deposit?

Description : Why are gases deposits found on top of oil deposit?

Last Answer : Ans: Gas deposits collect above the oil because they are less dense. 

What does porous mean?

Description : What does porous mean?

Last Answer : Ans: Porous means something having sponge-like holes through which liquid or gas can seep. 

Give three uses for oil products.

Description : Give three uses for oil products. 

Last Answer : Ans: Oil products are used in vehicles, for heating homes and in power stations. 

List five common fuels that could be used in the home

Description : List five common fuels that could be used in the home

Last Answer : Ans: coal, natural gas, kerosene oil, wood, charcoal 

Give the meaning of the following words a) combustion b) ignition

Description : Give the meaning of the following words a) combustion b) ignition

Last Answer : a) The chemical reaction which takes place when a fuel reacts with oxygen to give out thermal energy (heat) is called combustion. b) The small amount of energy needed to light a fuel is called ignition.

Where most of the world’s energy does comes from?

Description : Where most of the world’s energy does comes from?

Last Answer : Ans: Most of the world’s energy comes from burning fuels. 

What is meant by 'energy crisis'? (a) Shortage of hydro-electricity (b) Malnutrition leading to short supply of energy in the human body (c) Shortage of the thermal power (d) Impending danger of total exhaustion of fossil fuels like coal and petroleum

Description : What is meant by 'energy crisis'? (a) Shortage of hydro-electricity (b) Malnutrition leading to short supply of energy in the human body (c) Shortage of the thermal power (d) Impending danger of total exhaustion of fossil fuels like coal and petroleum

Last Answer : Ans: (b)

What did the similarities between fossil animals and modern animals suggest to Darwin?

Description : What did the similarities between fossil animals and modern animals suggest to Darwin?

Last Answer : In brief, those similarities Darwin observed suggested that those animals that he saw in fossil form passed along useful traits to modern animals. These traits had been selected by nature (natural selection) because of their value to newer generations.

Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Description : Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal  gas (c) excess release of carbon monoxide by incomplete  combustion (d) excess formation of CO2 by combustion and  animal respiration.

Last Answer : (a) excess NO2 and SO2 from burning fossil fuels

Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Description : Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Last Answer : (a) excess NO2 and SO2 from burning fossil fuels

If ……. has a future, then ultra-super critical boiler will be the key. a) Coal b) Fossil fuels c) Natural gas d) Oil

Description : If ……. has a future, then ultra-super critical boiler will be the key. a) Coal b) Fossil fuels c) Natural gas d) Oil

Last Answer : a) Coal

One source of Acid Rain is: w) sulfur in fossil fuels x) carbon in coal y) hydrogen in hydrocarbons z) chloroflorocarbons in aerosols

Description : One source of Acid Rain is: w) sulfur in fossil fuels x) carbon in coal y) hydrogen in hydrocarbons z) chloroflorocarbons in aerosols

Last Answer : ANSWER: W -- SULFUR IN FOSSIL FUELS

With proper reason suggest type of enclosure for electric drives used in coal mines.

Description : With proper reason suggest type of enclosure for electric drives used in coal mines.

Last Answer : Flame-proof type of enclosure for electric drives is used in coal mines.  Reason: - Coal mines are very hazardous, prone to flame and explosions. Under such conditions, flame proof type ... them (due to arcs, sparks, or flashes) without igniting the surrounding flammable gases or vapors.

Dolly is the name of the _____ A. First cloned sheep B. First cloned monkey C. First test-tube baby D. First human fossil

Description : Dolly is the name of the _____ A. First cloned sheep B. First cloned monkey C. First test-tube baby D. First human fossil

Last Answer : ANSWER: A

Dolly is the name of the ? A. First cloned sheep (Answer) B. First cloned monkey C. First test-tube baby D. First human fossil

Description : Dolly is the name of the ? A. First cloned sheep (Answer) B. First cloned monkey C. First test-tube baby D. First human fossil

Last Answer : A. First cloned sheep (Answer)

Increasing human population put pressure on the natural resources such as land, soil, water, fossil fuels etc. IT causes - I. Soil erosion II. Salinization of soils III. DesertificationIV. Eutrophicationa. I and IIb. I, II and IIIc. III and IVd. I, II, III and IV

Description : Increasing human population put pressure on the natural resources such as land, soil, water, fossil fuels etc. IT causes - I. Soil erosion II. Salinization of soils III. Desertification IV. Eutrophication a. I and II b. I, II and III c. III and IV d. I, II, III and IV

Last Answer : d. I, II, III and IV

If there had been no fossil fuels would we be here?

Description : If there had been no fossil fuels would we be here?

Last Answer : Yes, mankind would certainly be here. No, we wouldn’t be nearing wiping ourselves out. But there were humans here for a very long time before they found and exploited fossil fuels. So yes, we would exist. Just not in this way in in these numbers.