What are the methods of preventing or reducing soil erosion?
Answer: Soil erosion is the natural process in which physical sources such as wind and water carry away the field’s... View Article
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Where are chromosomes found in a cell? State their function.
Chromosomes are thread-like structures present in the nucleus of a eukaryotic cell, which carries genetic information from one generation to... View Article
Give the chemical formula of the solution of borax in water.
Borax dissolves in water to give an alkaline solution. Na2B4O7 + 7H2O → 2NaOH + 4H3BO3 Borax Sodium tetraborate decahydrate... View Article
What is the interaction energy associated with London force?
The interaction energy associated with London forces is inversely proportional to the sixth power of the distance between two interacting... View Article
What happens when the common salt is dissolved in the water?
When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic... View Article
What is the necessary condition for halogenation in benzene?
A necessary condition for halogenation in benzene is the presence of a halogen carrier. Halogenation of Benzene Halogenation is an... View Article
What is the molecular mass of glucose molecule (C6H12O6)?
Answer: The total sum of the masses of the atoms or elements present in the molecule is termed as molecular... View Article
In which part of a flower, you are likely to find the ovary?
The pistil is the part of the flower that contains the ovary. Parts of a flower Peduncle: The stalk of... View Article
Where does the image get formed for the shortsighted person?
The image forms before the retina. Short-sightedness Short-sightedness (myopia) usually occurs when the eyes grow slightly too long, which means they... View Article
How is oxygen and carbon dioxide transported in human beings?
Respiration is the process through which living organisms take in oxygen and give out carbon dioxide to release energy. So,... View Article
Give two practical applications of reflection of sound waves.
Two practical applications of reflection of sound waves are: (a) Reflection of sound is used to measure the distance and... View Article
What criteria do we use to decide whether something is alive?
Answer: Any visible movement such as walking, breathing, or growing is generally used to decide whether something is alive or... View Article
Name one chemical element that has the highest boiling point?
Xenon has the highest boiling point. Down a group in the periodic table, due to a higher number of electrons in... View Article
Can we survive only on raw, leafy vegetables/grass? Discuss.
No, we cannot survive only on raw, leafy vegetables/ grass. Explanation Humans cannot survive only on raw, leafy vegetables or grass.... View Article
Give an example of an ion with minimum internuclear distance.
The distance between two nuclei in a molecule is internuclear distance. In O2, the bond order =2 In O2+, the bond order... View Article
What are the species that are formed when BCl3 is hydrolysed?
The trichlorides of group 13 being covalent in nature, form tetrahedral [M(OH)4]–,on hydrolysis in water. When BCl3 is treated with... View Article
What is obtained from the area under the velocity-time graph?
The area under the velocity-time graph gives the distance moved by the object in a given interval of time Explanation... View Article
What is the product obtained when iron and sulphur is heated?
When iron filings and sulphur powder are mixed and heated, they undergo a chemical reaction and form ferrous sulphide (FeS). It is a new substance that... View Article
What does passing of carbon dioxide through slaked lime give?
If CO2 is passed through slaked lime, it gives out calcium carbonate (CaCO3) also called marble/limestone. This is due to the insoluble suspension... View Article
Identify the type of consumer: The frog feeding on an insect.
Secondary Consumer feeds on smaller plant-eating animals in a food chain. Consumers and its types The main difference between primary... View Article
