Biology
Grade-8
Easy
Question
I am one of the best methods of cleansing water.
- Iodine
- Reverse osmosis
- Water Chlorination
- Clay vessel filtration
Hint:
Reverse Osmosis is a technology that is used to remove a large majority of contaminants from water by pushing the water under pressure through a semi-permeable membrane.
The correct answer is: Reverse osmosis
- Reverse Osmosis (RO) is a water treatment process that removes contaminants from water by using pressure to force water molecules through a semipermeable membrane.
- During this process, the contaminants are filtered out and flushed away, leaving clean, delicious drinking water.
Related Questions to study
Biology
I am a mixture that works as an oxidant and rapidly kills microorganisms making water safe for consumption.
I am a mixture that works as an oxidant and rapidly kills microorganisms making water safe for consumption.
BiologyGrade-8
Biology
I am time-consuming and eliminate minerals easily but not effective as an RO filter.
I am time-consuming and eliminate minerals easily but not effective as an RO filter.
BiologyGrade-8
Biology
I was used before people had access to other purifiers.
I was used before people had access to other purifiers.
BiologyGrade-8
Biology
I am a red chemical which is extremely powerful.
I am a red chemical which is extremely powerful.
BiologyGrade-8
Biology
UV Radiation alone can remove impurities and heavy metals.
UV Radiation alone can remove impurities and heavy metals.
BiologyGrade-8
Biology
Which among the following uses a multi-stage process that involves UV & UF filtration?
Which among the following uses a multi-stage process that involves UV & UF filtration?
BiologyGrade-8
Biology
Identify the species in which Streptomycin is obtained.
Identify the species in which Streptomycin is obtained.
BiologyGrade-8
Biology
Pick the odd one out:
Pick the odd one out:
BiologyGrade-8
Biology
About 119 pure chemicals are extracted from less than 90 species and are used as medicines throughout the world.
About 119 pure chemicals are extracted from less than 90 species and are used as medicines throughout the world.
BiologyGrade-8
Biology
Identify the water filtration method below.
Identify the water filtration method below.
BiologyGrade-8
Biology
________ is the study of how animals use plants, insects, and other inorganic materials in self-medication.
________ is the study of how animals use plants, insects, and other inorganic materials in self-medication.
BiologyGrade-8
Biology
________ forces water through a semi permeable membrane and removes pollutants.
________ forces water through a semi permeable membrane and removes pollutants.
BiologyGrade-8
Biology
Pick the odd one out:
Pick the odd one out:
BiologyGrade-8
Biology
About 90% of the world population depends on plant-based medicine for primary health care.
About 90% of the world population depends on plant-based medicine for primary health care.
BiologyGrade-8
Biology
Which among the following method is not a better purification approach?
Which among the following method is not a better purification approach?
BiologyGrade-8
