Very Short Answer Type Questions
1. Name three useful products of coal.
2. Which product of coal is used as a reducing agent in the extraction of metals?
3. Name the process by which plant material (or vegetation) buried deep under the earth was slowly converted into coal.
4. Name the product of coal, which is a thick black liquid with an unpleasant smell.
Various steps involved in agriculture are collectively known as agricultural practices, which include:
1. At present about 118 elements are known.
2. Elements can be divided into two main groups: metals and non-metals.
3. Elements which form positive ions by losing electrons are called metals. Thus, metals are the elements which have the tendency to lose electrons.
Children's Day is observed in India every year on November 14. It falls on a Monday this year. Because Pandit Jawaharlal Nehru, often known as Chacha Nehru, had a special affection for children, the day is observed on his birthday. He was India's first prime minister and held the view that youth are the nation's future and have the potential to influence its future development. Children dress colorfully, perform special acts, and schools organise cultural events to honour Jawaharlal Nehru's teachings and legacies on Children's Day.
Without children, there would be no joy, laughter, or love in the world. Children are therefore God's most precious creation, and we should do everything in our power to safeguard, educate, and cherish them. Greetings on Children's Day!
Q1. To get the number of dimensions of a Series object, which attribute is used to display the value?
(a) index
(b) size
(c) itemsize
(d) ndim
Q2. To display last five rows of a series object ‘S’, you may write:
(a) S.Head()
(b) S.Tail(5)
(c) S.Head(5)
(d) S.tail()
Q1. A box contains cards numbered 6 to 50. A card is drawn at random from the box. The probability that the drawn card has a number which is a perfect square like 4,9... is
(a) 1/45
(b) 2/15
(c) 4/45
(d) 1/9
