Chemistry
Grade-6
Easy
Question
When rain and snow is mixed together and fall on the ground, they are called as:
- Hail
- Dew
- Sleet
- Mist
Hint:
Also called partially frozen rain.
The correct answer is: Sleet
When rain and snow are mixed together and fall on the ground, they are called: Sleet.
Mixed rain-snow is precipitation that is a mixture of rain and partially melted snow. Unlike freezing rain, which is a solid block of ice or liquid until it hits an object and completely freezes, this precipitate is soft and translucent, but a trail of ice crystals from partially melted snowflakes also called slush. This type of precipitation is commonly known as sleet in most countries.
Related Questions to study
Chemistry
Indoor air averages 2-5 times more polluted than the outdoor air and air circulation is very less inside as compared to outside. Which of the following pollutants is not considered to cause indoor air pollution?
- Benzene
- Methanol
- Toluene
- Octane
Indoor air averages 2-5 times more polluted than the outdoor air and air circulation is very less inside as compared to outside. Which of the following pollutants is not considered to cause indoor air pollution?
ChemistryGrade-6
- Benzene
- Methanol
- Toluene
- Octane
Chemistry
Which of the following statements is correct?
i. The less burning of fuels leads to a larger amount of greenhouse gases being emitted.
ii. Organic agriculture is not entirely emission-free, but the amount of pollutants is lower.
iii. Trees are not only natural air filters, but they also cool down summer temperatures by a few degrees.
(i) (ii) (iii) True True False (i) (ii) (iii) True False True (i) (ii) (iii) False True True (i) (ii) (iii) False True True
Which of the following statements is correct?
i. The less burning of fuels leads to a larger amount of greenhouse gases being emitted.
ii. Organic agriculture is not entirely emission-free, but the amount of pollutants is lower.
iii. Trees are not only natural air filters, but they also cool down summer temperatures by a few degrees.
ChemistryGrade-6
(i) (ii) (iii) True True False (i) (ii) (iii) True False True (i) (ii) (iii) False True True (i) (ii) (iii) False True True
Chemistry
Which of the following are the better household practices:
- Avoid setting fire to garbage, dry leaves
- Use of gas-powered lawn and gardening equipment
- Compost your yard waste
- All of these
Which of the following are the better household practices:
ChemistryGrade-6
- Avoid setting fire to garbage, dry leaves
- Use of gas-powered lawn and gardening equipment
- Compost your yard waste
- All of these
Chemistry
Smoking inside the house causes:
- Cancer
- Asthma
- Eczema
- Psoriasis
Smoking inside the house causes:
ChemistryGrade-6
- Cancer
- Asthma
- Eczema
- Psoriasis
Chemistry
Air pollution has adverse effects on:
- Human health
- Vegetation
- Atmosphere
- A, B and C
Air pollution has adverse effects on:
ChemistryGrade-6
- Human health
- Vegetation
- Atmosphere
- A, B and C
Chemistry
In which of the following household products formaldehyde is not found:
- Softeners
- Wallpapers
- Light bulbs
- Cosmetics
In which of the following household products formaldehyde is not found:
ChemistryGrade-6
- Softeners
- Wallpapers
- Light bulbs
- Cosmetics
Chemistry
________ cars emit more nitrogen oxides than petrol cars
- Hybrid
- Diesel
- Electric
- CNG
________ cars emit more nitrogen oxides than petrol cars
ChemistryGrade-6
- Hybrid
- Diesel
- Electric
- CNG
Chemistry
By which of the following ways we can reduce the exposure of synthetic chemicals in the house?
- Opt for (no-VOC or low-VOC) paints
- By using green cleaning substances
- Use flowers as substitute for chemical air fresheners
- All the above
By which of the following ways we can reduce the exposure of synthetic chemicals in the house?
ChemistryGrade-6
- Opt for (no-VOC or low-VOC) paints
- By using green cleaning substances
- Use flowers as substitute for chemical air fresheners
- All the above
Chemistry
Using renewable energy sources is always better because:
- They do not emit leftover gases
- They only emit gases like ozone
- Very less raw material is required for their production
- All of these
Using renewable energy sources is always better because:
ChemistryGrade-6
- They do not emit leftover gases
- They only emit gases like ozone
- Very less raw material is required for their production
- All of these
Chemistry
Match column A(pollutants) with column B(sources).
Column A |
Column B |
(a) Ammonia |
(i) Fossils fuels |
(b) Black carbon |
(ii) Fertilizers |
(c) Formaldehyde |
(iii) Cigarettes |
(d) Smoke |
(iv) Disinfectants |
- (a) – (iv), (b) – (iii), (c) – (i), (d) – (ii)
- (a) – (iv), (b) – (iii), (c) – (ii), (d) – (i)
- (a) – (ii), (b) – (i), (c) – (iii), (d) – (iv)
- (a) – (ii), (b) – (i), (c) – (iv), (d) – (iii)
Match column A(pollutants) with column B(sources).
Column A |
Column B |
(a) Ammonia |
(i) Fossils fuels |
(b) Black carbon |
(ii) Fertilizers |
(c) Formaldehyde |
(iii) Cigarettes |
(d) Smoke |
(iv) Disinfectants |
ChemistryGrade-6
- (a) – (iv), (b) – (iii), (c) – (i), (d) – (ii)
- (a) – (iv), (b) – (iii), (c) – (ii), (d) – (i)
- (a) – (ii), (b) – (i), (c) – (iii), (d) – (iv)
- (a) – (ii), (b) – (i), (c) – (iv), (d) – (iii)
Chemistry
By installing tall chimneys in the factories:
- Dust particles are filtered
- Smoke is filtered
- Gases are thrown out
- Harmful liquids are removed
By installing tall chimneys in the factories:
ChemistryGrade-6
- Dust particles are filtered
- Smoke is filtered
- Gases are thrown out
- Harmful liquids are removed
Chemistry
The long form of C.N.G. is:
- Compressed natural gas
- Combustible natural gas
- Compressed national gas
- Both A and B
The long form of C.N.G. is:
ChemistryGrade-6
- Compressed natural gas
- Combustible natural gas
- Compressed national gas
- Both A and B
Chemistry
The natural air filters from the following is:
- Rivers
- Trees
- Roads
- Mountains
The natural air filters from the following is:
ChemistryGrade-6
- Rivers
- Trees
- Roads
- Mountains
Chemistry
Various health deteriorating compounds present in the smoke are:
- Arsenic
- Carbon monoxide
- Both A and B
- Sulphur dioxide
Various health deteriorating compounds present in the smoke are:
ChemistryGrade-6
- Arsenic
- Carbon monoxide
- Both A and B
- Sulphur dioxide
Chemistry
Which of the following measures need to be taken to control air pollution from vehicles?
(i) Installation of catalytic converters in vehicles
(ii) Use a hybrid or all-electric cars
(iii) Use internal combustion engines in vehicles
(iv) Use lead containing fuels
- Only (i) and (ii)
- Only (i) and (iii)
- Only (i), (ii) and (iii)
- Only (i) and (iv)
Which of the following measures need to be taken to control air pollution from vehicles?
(i) Installation of catalytic converters in vehicles
(ii) Use a hybrid or all-electric cars
(iii) Use internal combustion engines in vehicles
(iv) Use lead containing fuels
ChemistryGrade-6
- Only (i) and (ii)
- Only (i) and (iii)
- Only (i), (ii) and (iii)
- Only (i) and (iv)