Class 8 science chapter 1 question 77-87

77. Question
One of the following crop is not cultivated by sowing its seeds directly
into soil. This one is:
A. wheat
B. gram (charm)
C. paddy
D. maize (makka)
Answer
The process of transferring the seedlings from the nursery to the main
ϐield by hand is called transplanting or transplantation. Some crops like
paddy and many vegetables, the seeds are not directly sown in the
ϐield’s soil.
78. Question
Tomatoes are cultivated by the practice called:
A. transpiration
B. translocation
C. transportation
D. transplantation
Answer
Paddy, tomatoes and chillies are grown by transplantation.
79. Question
Which of the following cannot be provided to the soil by a chemical
fertilizer?
A. nitrogen
B. humus
C. potassium
D. phosphorus
Answer
Nitrogen, phosphorus and potassium are chemical which can be
provided to the soil by chemical substance called fertilizers whereas
humus cannot. It is provided to the soil by natural substance called
manure.
80. Question
Which of the following is not grown by transplantation?
A. chillies
B. tomatoes
C. paddy
D. papaya
Answer
Paddy, tomatoes and chillies are grown by transplantation.
81. Question
The Rhizobium bacteria present in the root nodules of pea plants can ϐix
one of the following from the atmosphere. This one is:
A. hydrogen
B. oxygen
C. nitrogen
D. halogen
Answer
The Rhizobium bacteria present in the root nodules of pea plants can ϐix
nitrogen.
82. Question
The process of beating out grains from the harvested wheat crop is
called:
A. beating
B. crushing
C. threshing
D. weeding
Answer
The process of beating out grains from the harvested wheat crop is
called threshing. It is done by a machine called combine.
83. Question
The food obtained from animals is very rich in:
A. fats
B. carbohydrates
C minerals
D. proteins
Answer
The food obtained from animals is very rich in proteins
84. Question
The Government Agency responsible for purchasing grains from the
farmers, safe storage and distribution is
A. CBI
B. FBI
C. FCI
D. FDI
Answer
The government agency like food corporation of India (FCI) buy food
grains from farmers and storing them properly.
85. Question
the process of removing unwanted plants from a crop ϐield is called?
A. Breeding
B. weeding
C. transplanting
D. harvesting
Answer
The removal of unwanted plants called weeds is called weeding.
86. Question
Poultry gives us:
A. eggs
B. meat
C. meat as well as eggs
D. honey
Answer
Poultry gives us meat as well as eggs.
87. Question
Which of of following is not a correct statement for sowing seeds?
A. seeds should be sown at right intervals
B. seeds should be sown at right depth
C. seeds should be sown in dry soil
D. seeds should not be sown in highly wet Soil
Answer
Seeds should not be sown in dry soil because water is necessary for
germination of seeds.

Comments

Post a Comment

Popular posts from this blog

Class 8 science chapter 1 very short questions with answers

Very Short Answer Questions Q. 1. If you are given a dry piece of land for cultivation what will you do before  sowing the seeds? [NCERT Exemplar] Ans: The field will be watered, tilled and ploughed before sowing seeds. Q. 2. During which months do farmers grow mustard in India? [NCERT Exemplar] Ans. October to March. Q. 3. Which activity of the farmer can promote growth of earthworms and  microbes in the field? [NCERT Exemplar] Ans. Loosening the soil/maintaining high moisture levels in soil. Q. 4. What are organic foods? [NCERT Exemplar] Ans. Crops cultivated without using any chemicals like fertilisers, pesticides,  weedicides, etc. are called organic foods. Q. 5. Why does a farmer rotate crops in a field? Ans. A farmer rotates crops as it maintains fertility of soil, gives better yields and  prevents crop diseases and pests. Q. 6. What do you mean by transplantation? Ans. The process of shifting seedlings from the nursery to the main field is called  transpl...
Read more

CLASS 8 HISTORY CHAPTER 1 SHORT QUESTIONS

Short Answer Questions Q. 1. How did James Mill view India? Ans. James Mill was not very positive towards India and considered Asian society as a whole at lower level of civilisation than Europe. He was well aware of religious intolerance, caste taboos and superstitious practices that dominated Indian social life. He suggested that the British should conquer all the territories of India to ensure the enlightenment and happiness of Indian people. For India was not capable of progress without the help of the British. He had a strong opinion that only British rule could civilise India. Q. 2. How did the British conquer India and establish their rule? Ans. The British conquered India in the following ways: (a) They conquered and overpowered local nawabs and rajas. (b) They gained control over economy and society. The collected revenue helped them to meet all their expenses. (c) They brought changes in rulers, tastes, customs and practices. Thus, they moulded everything in their favour. Q. ...
Read more