Night blindness is caused due to deficiency of ____________ in our food.
Night blindness is caused due to deficiency of vitamin A in our food. Explanation Night blindness (in which it is... View Article
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Clear, transparent water is always fit for drinking. Comment.
Clean and transparent water is not always fit for drinking. If water is clear it doesn’t mean that it is... View Article
Artificial magnets are made in different shapes such as __________, __________ and ____________.
Artificial magnets are made in different shapes such as bar magnets, horse-shoe magnetsandcylindrical magnets. Artificial magnets can be created by... View Article
A combination of bones and cartilages forms the _______ of the body.
A combination of bones and cartilages forms the skeleton of the body Explanation The healthy skeletal system is made up... View Article
Name the part of plant which produces food. Name the process.
Leaf produces the food of the plant, the process of making food in the presence of sunlight is called photosynthesis... View Article
An image formed by a concave ___________ cannot be obtained on a screen.
An image formed by a concave lens cannot be obtained on a screen. Explanation Concave lenses create only virtual images... View Article
A device that is used to break an electric circuit is called _______________.
A device that is used to break an electric circuit is called a switch. Explanation A switch is the device... View Article
The basic unit of speed is: (i) km/min (ii) m/min (iii) km/h (iv) m/s
(iv) m/s. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is... View Article
Longer line in the symbol for a cell represents its ____ terminal.
A longer line in the symbol for a cell represents its positive terminal. Explanation A cell is a single unit... View Article
An image which can be obtained on a screen is called a _________ image.
An image that can be obtained on a screen is called a real image. Explanation A real image can be... View Article
Green plants are called _________________ since they synthesise their own food.
Green plants are called autotrophs since they synthesise their own food. Explanation An autotroph ;is an organism that can produce... View Article
At an individual level, how can you help reduce air pollution?
Air pollution should be checked at individual level in the following ways : We can use public transportation and encourage... View Article
Differentiate between endangered species and extinct species
Differentiate between endangered species and extinct species Endangered species Extinct species The species which are at the verge of extinction... View Article
The Materials which are attracted towards a magnet are called________.
The Materials which are attracted towards a magnet are called magnetic materials. Magnetic materials are classified into three categories, based... View Article
How would you obtain clear water from a sample of muddy water?
We can obtain clear water from a sample of muddy water by the process of filtration. Explanation In this process,... View Article
Do you find that all living beings need the same kind of food?
No. Different animals eat different kinds of food as per their body structure and internal organs. In order to survive,... View Article
Sketch the cross-section of soil and label the various layers.
A vertical section through different layers of the soil is called the soil profile. Each layer differs in feel (texture),... View Article
Why do we often sneeze when we inhale a lot of dust-laden air?
We often sneeze when we inhale a lot of dust-laden air to expel out these foreign particles. These particles get... View Article
The rhythmic expansion and contraction of the heart is called ______
The rhythmic expansion and contraction of the heart is called Cardiac cycle.. The cardiac cycle is the rhythmic contraction and... View Article
You are given an iron strip. How will you make it into a magnet?
An iron strip can be converted into a magnet by the following method: Place the iron strip on a table.... View Article
