Why smoke rises ?

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1 Answer

Answer :

Smoke rises because smoke is lighter than air.
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The smoke from a bonfire rises upwards?

Description : The smoke from a bonfire rises upwards?

Last Answer : It is hot, and less dense than the air it displaces. It floats of the cooler, denser air.

Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm. (A) n-paraffins (B) Olefins (C) Aromatics (D) None of these

Description : Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm. (A) n-paraffins (B) Olefins (C) Aromatics (D) None of these

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Who is the Director of the film Batman Dark Night Rises....?

Description : Who is the Director of the film Batman Dark Night Rises....?

Last Answer : answer:Seriously? Are playing some sort of trivia game, or what? Christopher Nolan.

Thermostat in my car was changed and the temp. gauge still rises, what can my problem be?

Description : Thermostat in my car was changed and the temp. gauge still rises, what can my problem be?

Last Answer : There are a lot of different things that could cause this: clogged radiator, bad water pump, problem with the AC compressor, and many more. There isn't enough information to give a good diagnosis. The fact that ... . It's a good idea to get it checked anyway, so that the engine doesn't blow up.

A ball is dropped from a height of 2.25 m on a smooth floor and it rises to a height of 1 m after the first bounce. The coefficient of restitutions between the ball and the floor is a.107 dynes b.0.33 c.0.44 d.0.57 e.0.67

Description : A ball is dropped from a height of 2.25 m on a smooth floor and it rises to a height of 1 m after the first bounce. The coefficient of restitutions between the ball and the floor is a.107 dynes b.0.33 c.0.44 d.0.57 e.0.67

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Water rises in a capillary tube to a height h. It will rise to a height more than h. a.in a lift moving up with an acceleration b.in all the above cases c.107 dynes d.at the poles e.on the surface of moon

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A cube of wood supporting 200 gm mass just floats in water. When the mass is removed, the cube rises by 2 cm the side of the cube will be a.5 cm b.10 cm c.12.5 cm d.20 cm e.15 cm

Description : A cube of wood supporting 200 gm mass just floats in water. When the mass is removed, the cube rises by 2 cm the side of the cube will be a.5 cm b.10 cm c.12.5 cm d.20 cm e.15 cm

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What falls and rises but never moves? -Riddles

Description : What falls and rises but never moves? -Riddles

Last Answer : A stockmarket.

Not far off shore a ship stands with a rope ladder hanging over her side. The rope has 10 rungs. The distance between each rung is 12 inches. The lowest rung touches the water. The ocean is calm. Because of the incoming tide, the surface of the water rises 4 inches per hour. How soon will the water cover the third rung from the top rung of the rope ladder? -Riddles

Description : Not far off shore a ship stands with a rope ladder hanging over her side. The rope has 10 rungs. The distance between each rung is 12 inches. The lowest rung touches the water. The ocean is calm. ... hour. How soon will the water cover the third rung from the top rung of the rope ladder? -Riddles

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If the temperature of a semiconductor rises, what is its resistivity? -General Knowledge

Description : If the temperature of a semiconductor rises, what is its resistivity? -General Knowledge

Last Answer : The answer is 'Decrease'

Which is the tax that takes away a higher proportion of one’s income as the income rises? -General Knowledge

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If temperature rises, what will be the coefficient of viscosity of liquid? -Do You Know?

Description : If temperature rises, what will be the coefficient of viscosity of liquid? -Do You Know?

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Which type of rainfall that occurs when wind rises up along a hill or mountain barrier? -Do You Know?

Description : Which type of rainfall that occurs when wind rises up along a hill or mountain barrier? -Do You Know?

Last Answer : answer:

Which is the tax that takes away a higher proportion of one’s income as the income rises? -General Knowledge

Description : Which is the tax that takes away a higher proportion of one’s income as the income rises? -General Knowledge

Last Answer : answer:

Which is the tax that takes away a higher proportion of one’s income as the income rises? -General Knowledge

Description : Which is the tax that takes away a higher proportion of one’s income as the income rises? -General Knowledge

Last Answer : answer:

If the temperature of a semiconductor rises, what is its resistivity? -General Knowledge

Description : If the temperature of a semiconductor rises, what is its resistivity? -General Knowledge

Last Answer : answer:

Which statement regarding air temperature is NOT trueCool air rises and warm air falls.Air heats up more quickly than land.Warm air is less dense than cool air.Air heats up more quickly than water?

Description : Which statement regarding air temperature is NOT trueCool air rises and warm air falls.Air heats up more quickly than land.Warm air is less dense than cool air.Air heats up more quickly than water?

Last Answer : Cool air rises and warm air falls is false. Cool air is denser than warm air, and therefore warm air will rise above cold air.

Why is there snow on the Mount Everest while it’s top rises above the clouds?

Description : Why is there snow on the Mount Everest while it’s top rises above the clouds?

Last Answer : Don’t move.

Why does the temperature drop as it rises above the earth's surface ?

Description : Why does the temperature drop as it rises above the earth's surface ?

Last Answer : This is because the air density is lower in the upper part of the earth and the amount of dust in the air is less. As a result, the sun's rays are less scattered in the dust above ... is 190K . The Van Allen Belt then began to raise the temperature for sunlight and other cosmic radiation.

Blood pressure rises after giving blood , what to do now ? I donated blood yesterday , I donate blood regularly for four months in a row, since the blood donation this time my head is spinning , my body is shaking , this has never happened before , so I measured the pressure 126/6 which is normally 120/60 , now my head is spinning and my body is shaking , Tomorrow , I have an exam on the 7th, I can't read , what should I do at this moment ?

Description : Blood pressure rises after giving blood , what to do now ? I donated blood yesterday , I donate blood regularly for four months in a row, since the blood donation this time my head is spinning , my body is shaking , ... , I have an exam on the 7th, I can't read , what should I do at this moment ?

Last Answer : Consult your doctor to control your BP. You will eat sherbet with lemon juice and salt , chew blackberries regularly.

What will happen if sea level rises ?

Description : What will happen if sea level rises ?

Last Answer : : The sea level will rise and the coast will be flooded.

In which country the sun rises first

Last Answer : The easternmost country is Japan.

In which phase of menstrual cycle, progesterone level rises

Description : In which phase of menstrual cycle, progesterone level rises

Last Answer : In which phase of menstrual cycle, progesterone level rises A. Menstrual phase B. Proliferative phase C. Secretory phase D. Maturation phase.

A bubble of methane gas rises from the bottom of the North sea. What will happen to the size of the bubble as it rises to the surface ?

Description : A bubble of methane gas rises from the bottom of the North sea. What will happen to the size of the bubble as it rises to the surface ?

Last Answer : A bubble of methane gas rises from the bottom of the North sea. What will happen to the size of the bubble as it rises to the surface ?

What happens when a objects temperature rises?

Description : What happens when a objects temperature rises?

Last Answer : The molecules which make up the objects move morevigorously.

What is it called when the water rises over the river and spills over the river banks?

Description : What is it called when the water rises over the river and spills over the river banks?

Last Answer : Need answer

What is an explanation of the dollar rises against the euro?

Description : What is an explanation of the dollar rises against the euro?

Last Answer : Need answer

What a period called when there business activity slows down prices and wages falls and unemployment rises?

Description : What a period called when there business activity slows down prices and wages falls and unemployment rises?

Last Answer : That is a recession.

Why does fog disappear when sun rises?

Description : Why does fog disappear when sun rises?

Last Answer : It doesn't always... it depends on whether there's enough heatfrom the sun reaching the ground. Fog - is simply water vapourthat's condensed into droplets. If the ground stays cold, the fogwill not dissipate.

Why does a partially inflated weather balloon expands as it rises?

Description : Why does a partially inflated weather balloon expands as it rises?

Last Answer : As height is gained the outside air pressure on the balloon isreduced. This reduction allows the gas inside the balloon toexpand.

What is a large raised area that rises above surrounding ground?

Description : What is a large raised area that rises above surrounding ground?

Last Answer : A plateau.

How much heat is absorbed by a 59g iron skillet when its temperature rises from 10oC to 25oC?

Description : How much heat is absorbed by a 59g iron skillet when its temperature rises from 10oC to 25oC?

Last Answer : 410 JFirst you need to find the specific heat capacity (c) for iron, which is 0.461 J/g-oC (https://www.engineersedge.com/materials/specific_heat_capacity_of_metals_13259.htm).The equation to use is Q=m x c x delta t, ... Q = 59 g x 0.461 J/g-oC x 15 oC = 410 J (rounded to two significant figures)

What is the slope of a ski run that rises 6 feet for every horizontal change of 30 feet?

Description : What is the slope of a ski run that rises 6 feet for every horizontal change of 30 feet?

Last Answer : slope = change in y / change in x = 6/30 = 1/5It can also be expressed as 1 in 5 or 20 %

What is the term for when water rises up to form clouds?

Description : What is the term for when water rises up to form clouds?

Last Answer : evaporation is when water vapour rises up and condensation iswhen water vapour turns into clouds

What happens to warm moist air which rises up the western side of a mountain?

Description : What happens to warm moist air which rises up the western side of a mountain?

Last Answer : Feel Free to Answer

When the body temperature rises a center in the brain initiates physiological changes decrease the body temperature. this is an example of?

Description : When the body temperature rises a center in the brain initiates physiological changes decrease the body temperature. this is an example of?

Last Answer : What is the answer ?

What happens when your airplane takes off from an airstrip on the ground and rises 30000 feet into the sky what happens to the air pressure on the outside of the airplane?

Description : What happens when your airplane takes off from an airstrip on the ground and rises 30000 feet into the sky what happens to the air pressure on the outside of the airplane?

Last Answer : Atmospheric pressure is caused by the weight of air above the measurement point. At 30,000 feet in the sky, the air pressure on the outside of the airplane will be much lower than it was nearer the ground.

What is the term for when water rises up to form clouds?

Description : What is the term for when water rises up to form clouds?

Last Answer : evaporation is when water vapour rises up and condensation iswhen water vapour turns into clouds

What do you call it when warm air over land rises and cool air from water moves in?

Description : What do you call it when warm air over land rises and cool air from water moves in?

Last Answer : A sea breeze

Where can I purchase a Weslo Cardio Glide new or used exercise machine, with seat, handlebar and pedals I don't want a treadmill. The seat rises as you push your legs out, feet on the pedals, pull the handle bar towards you. What is approximate price?

Description : Where can I purchase a Weslo Cardio Glide new or used exercise machine, with seat, handlebar and pedals I don't want a treadmill. The seat rises as you push your legs out, feet on the pedals, pull the handle bar towards you. What is approximate price?

Last Answer : The Weslo Cardio Glide machine is difficult to find new however there is one etailer that still carries it, www.ranchomurieta.com. It may be easier however to simply purchase another machine with the ... as Craigslist.org where you can occasionally find the Weslo Cardio Glide for around $20 - $40.

When air is warm, it rises and leaves an area of low pressure which becomes filled with sinking cold air. After a hot, sunny day, the land cools faster than the sea. What is likely to happen after a hot, sunny day on the sea shore?

Description : When air is warm, it rises and leaves an area of low pressure which becomes filled with sinking cold air. After a hot, sunny day, the land cools faster than the sea. What is likely to happen after a hot, sunny day on the sea shore?

Last Answer : When air is warm, it rises and leaves an area of low pressure which becomes filled with sinking cold air. After a hot, sunny day, the land cools faster than the sea. What is likely to happen after a hot, sunny day on the sea shore?

The oil in the wick of lamp rises due to

Description : The oil in the wick of lamp rises due to

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The river Danube rises in which country?

Description : The river Danube rises in which country?

Last Answer : Germany

The river which rises in the Kamarpet hill in Chhotanagpur Plateau of Bihar and called "The River of Sorrow" is (a) Mahanadi (b) Damodar (c) Krishna (d) Godavari

Description : The river which rises in the Kamarpet hill in Chhotanagpur Plateau of Bihar and called "The River of Sorrow" is (a) Mahanadi (b) Damodar (c) Krishna (d) Godavari

Last Answer : Ans: (b)

The sun rises in Arunachal Pradesh two hours before it does in Dwaraka in Gujarat. This is because the former is (a) higher in elevation than Dwaraka (b) situated further north than Dwaraka (c) situated further east (about 30º longitude) than Dwaraka (d) situated about 30 º east of Dwaraka and the earth rotates from west to east

Description : The sun rises in Arunachal Pradesh two hours before it does in Dwaraka in Gujarat. This is because the former is (a) higher in elevation than Dwaraka (b) situated further north than Dwaraka (c) situated ... than Dwaraka (d) situated about 30 º east of Dwaraka and the earth rotates from west to east

Last Answer : Ans: (d)

Which one of the following statements in not correct? [IAS 2006] (a) Mahanadi River rises in Chattisgarh (b) Godavari River rises in Maharashtra (c) Cauvery River rises in Andhra Pradesh (d) Tapti River rises in Madhya Pradesh

Description : Which one of the following statements in not correct? [IAS 2006] (a) Mahanadi River rises in Chattisgarh (b) Godavari River rises in Maharashtra (c) Cauvery River rises in Andhra Pradesh (d) Tapti River rises in Madhya Pradesh

Last Answer : Ans: (c)

If the temperature of a semiconductor rises, what is its resistivity?

Description : If the temperature of a semiconductor rises, what is its resistivity?

Last Answer : – Decrease

Serum sodium level rises in all of the following except (A) Renal failure (B) Prolonged steroid therapy (C) Aldosteronism (D) Dehydration

Description : Serum sodium level rises in all of the following except (A) Renal failure (B) Prolonged steroid therapy (C) Aldosteronism (D) Dehydration

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Serum inorganic phosphorous rises in all the following conditions except (A) Hypoparathyroidism (B) Hypervitaminosis D (C) Chronic renal failure (D) After a carbohydrate-rich meal MINERAL METABOLISM 197

Description : Serum inorganic phosphorous rises in all the following conditions except (A) Hypoparathyroidism (B) Hypervitaminosis D (C) Chronic renal failure (D) After a carbohydrate-rich meal MINERAL METABOLISM 197

Last Answer : Answer : D