Explain the structure of the transparent and bulging part of the sclera. Also, where is it found?
The sclera is the white layer of the eye. In the central region, it is transparent and is called the... View Article
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Express each of the following numbers as the sum of three odd primes: (a) 21 (b) 31 (c) 53 (d) 61
A prime number is a positive integer having exactly two factors. If p is a prime, then its only factors... View Article
Name the planets having rings around them? i) Saturn ii) Jupiter iii) Uranus iv) All of the above
All of the above Saturn Saturn is the sixth planet from the Sun and the second-largest planet in our solar... View Article
Which of the following is a primary activity? i) Mining ii) Agriculture iii) Banking iv) Quarrying
Banking is not a primary activity. It is the tertiary activity.
Find the product using suitable properties: (a) 738 x 103 (b) 854 x102 (c) 258 x 1008 (d) 1005 x168
Answer: We can determine the product of a given set of numbers by the Distributive Property. Distributive Property states that ”... View Article
Identify homogeneous mixtures from the following. i) Soda water ii) Brass iii) Air iv) Soap solution
The correct option ii) Brass. Brass is a homogeneous mixture of two metals and cannot be separated into components by... View Article
List five rational numbers between: (a) -1 and 0 (b) -2 and -1 (c) -4/5 and -2/3 (d) -1/2 and 2/3
(a) Rational numbers between -1 and 0: (-1/1) and (0/1) Since we need 5 numbers, multiply both the numerator and... View Article
Helium atom has an atomic mass of 4 u and two protons in its nucleus. How many neutrons does it have?
Answer: The mass of an atom is the sum of the masses of protons and neutrons present in its nucleus.... View Article
Prepare a table having two columns depicting names of endocrine glands and hormones secreted by them.
Endocrine gland Hormones Testis Testosterone Ovary Oestrogen Thyroid Thyroxine Adrenal Adrenaline Pancreas Insulin Pituitary Growth hormone
Red soil is mainly found in the: i) Jammu and Kashmir ii) Rajasthan iii) Punjab iv) None of the above
None of these Red soil and its uses Red soils, along with their minor groups, form the largest soil group of... View Article
Which organisms are called primitive and how are they different from the so-called advanced organisms?
An organism which has a simple body structure and ancient body design or features that have not changed much over... View Article
Identify the solutions among the following mixtures. (1) Soil (2) Seawater (3) Air (4) Coal (5) Soda water
Answer: (2) Seawater, (3) Air and (5) Soda water What is solution? A solution is a homogeneous mixture of two or more... View Article
Select non-conductors of electricity from the following: i) Water ii) Pure water iii) Rubber iv) Paper
Pure water, paper and rubber are non-conductors of electricity. Conductors and insulators Electrical conductors are materials that conduct electricity, and... View Article
The reproductive part of a plant is the – (a) leaf (b) stem (c)root (d) flower
Correct Option: D- Flower. Flower The reproductive part of a plant is the flower. Flowers are collections of reproductive and... View Article
Write down the measure of: (a) Some acute angles (b) Some obtuse angles (give at least two examples of each)
An acute angles an angle whose measure ranges from 0° to 90° and is lesser than 90° An obtuse angle... View Article
The device used for producing electric current is called a A) generator B) galvanometer C) ammeter D) motor
A) generator Electric generator It’s a device that receives mechanical energy from an external source and converts it to electrical... View Article
The major physical divisions of India include: i) Himalayas ii) Northern plains iii) Desert iv) All of these
All of the above The Northern Mountains/Himalayan Mountains The northernmost landscape of the country highlights the young and structurally folded... View Article
Can you think of reasons why more complex organisms cannot give rise to new individuals through regeneration?
Regeneration happens through mitosis and a particular type of tissue can give rise to its own kind only. In complex... View Article
Which scientist does not belong to Germany? i) Ernst Chain ii) Albert Einstein iii) Carl Bosch iv) Niels Bohr
Niels Bohr belongs to Denmark Niels Bohr Niels Bohr was one of the foremost scientists of modern physics, best known... View Article
Give the names of two energy sources that you would consider to be exhaustible. Give reasons for your choices.
Two exhaustible energy sources are as follows: Coal: It is produced from the dead remains of plants and animals buried... View Article
