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  • 1 answers

Meghna Thapar 5 years, 10 months ago

Hybridisation – It involves the crossing between genetically dissimilar plants to produce a new kind. Crossing may be between two different varieties (intervarietal cross - breeding) or between the two different species of the same genus (inter specific cross – breeding) and between different genera (intergeneric cross – breeding).

 

Crop

Improved Variety

Rice

Maize

Soyabean

Sunflower

Mustard

IR8

Ganga 5

PK 262

BSH 1

Pusa Bold

 

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Gaurav Seth 6 years, 6 months ago

Take help from the similar question:

A number consists of two digits whose sum is 9.if 27 is subtracted from the number,its digits are reversed . find the number

Solution:

Let us assume, x and y are the two digits of the two-digit number

 

Therefore, the two-digit number = 10x + y  and reversed number = 10y + x

 

Given:

 

x + y = 9 -------------1

 

also given:

 

10x + y - 27 = 10y + x

9x - 9y = 27

x - y = 3 --------------2

 

Adding equation 1 and equation 2

 

2x = 12

x = 6

 

Therefore, y = 9 - x = 9 - 6 = 3

 

The two-digit number = 10x + y = 10*6 + 3 = 63

  • 1 answers

Sia ? 6 years, 6 months ago

Closure property for addition : If a and b are two whole numbers and their sum is c, i.e. a + b = c, then c is will always a whole number.

  • 1 answers

Sia ? 6 years, 6 months ago

Check revision notes here : <a href="https://mycbseguide.com/cbse-revision-notes.html">https://mycbseguide.com/cbse-revision-notes.html</a>

  • 1 answers

Gagandeep Singh 6 years, 6 months ago

Give answer
  • 1 answers

Minakshi Mishra 6 years, 6 months ago

He sais so because his cupboard was empty and winter was arrived and there is nothing to eat .
  • 5 answers

Polak Das 6 years, 6 months ago

Pull or push of an object is called force.

Satyam Krishna 6 years, 6 months ago

push or pull of an object is called fore.

Piyush Mandhare 6 years, 6 months ago

Pushing and pulling is called force

Jhanvi Pal 6 years, 6 months ago

A push or pull on an object is called force

Garima Chaudhary 6 years, 6 months ago

A push or a pull is called force
  • 1 answers

Nds Teja Reddy Reddy 6 years, 6 months ago

The use Of land is called land resource
  • 2 answers

Priti Sharma 6 years, 6 months ago

No because handles are made up of THERMOSETTING plastics which does not melts easily therefore we use them on the gas . while the bristles of the toothbrush are made up of synthetic fibre known as NYLON

Shivani Kumari 6 years, 6 months ago

No
  • 1 answers

Himanshu Maan 6 years, 6 months ago

12__-15
  • 2 answers

Priti Sharma 6 years, 6 months ago

Potential resources are those resources whose entire quantity may not be known and are not being used in the present. eg uranium found in ladakh

Sagar Prem 6 years, 6 months ago

Cg
  • 1 answers

Dipti More 6 years, 6 months ago

The things we need or we use from surrounding or human made is called resource
  • 2 answers

Shubham Jha 6 years, 6 months ago

1488334

Sia ? 6 years, 6 months ago

1488334

  • 3 answers

Shubham Jha 6 years, 6 months ago

1

Celestina Burh 6 years, 6 months ago

1

Priyanka Kumari 6 years, 6 months ago

1
  • 0 answers
  • 1 answers

Priti Sharma 6 years, 6 months ago

the problem was that he divided history into hindu Muslim and British period
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  • 2 answers

Pooja V M 6 years, 6 months ago

It has econmic value

Gauranshi Vashisth 6 years, 6 months ago

Grandma 's home remedies , etc.
  • 1 answers

Yuvasri Kandasamy 6 years, 6 months ago

Fiber is a natural or synthetic substance that is significantly longer than it is wide.
  • 1 answers

Yogita Ingle 6 years, 6 months ago

Biodegradable Waste

These kind of waste products are broken down by the action of micro-organisms like Bacteria. This kind of waste decay and Decompose naturally and become harmless after some time. Biodegradable Waste Examples are Cattle Dung, Tea leaves, Wood, Grass, Fruit & Vegetables, Paper, Animal Bones.  These turn into compost after decaying and act as Natural Fertilizers.  They do not normally Pollute the Environment, but if present in a large quantity, those that cannot be Decomposed can pollute the Environment.

 

Non-Biodegradable Waste

These substances or type of waste material, (non-poisonous and harmless substances)cannot be broken down into a simpler form, they cannot be decomposed.  Non-Biodegradable waste examples are Plastics, Ball Point Pen Refill, Polythene Bags, Glass Objects, Aluminum Cans, Iron Nails, Foil paper, Radioactive waste, to name a few.

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