NCERT Solutions for Class 9 Science Chapter 15: Improvement In Food Resources

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The NCERT Solutions for Class 9 Science Chapter 15 Improvement In Food Resources are included in the article below. Some of the important concepts of Class 9 Science Chapter 15 Improvement in Food Resources are:

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NCERT Solutions for Class 9 Science Chapter 15

NCERT Solutions

Important Topics for Class 9 Science Chapter 15 Improvement in Food Resources

Food is an essential resource significant for all living beings. It provides nutrients like carbohydrates, vitamins, protiens and minerals. There are various sources of food such as agriculture and animal husbandry.

Artificial Hybridisation

Artificial hybridization is expressed as a method of usage of selective pollen grains to further hold pollination and fertilization. It comprises crossing of several genera and species in order to achieve a specific product.

In order to bring artificial hybridization in effect, these two steps are followed:

Emasculation
Bagging

Nutrient Management

Nutrient management is a procedure that assists in controlling the amount, source, and timing of nutrient application in order to minimize nutrient losses and simultaneously escalate agricultural output.

Example: State the importance of Nutrient Management.

Solution: The importance of Nutrient Management is:

Plant nutrients can potentially pollute waterways. This is where nutrient management assists the process of minimizing damage.
Nutreint Management actively elevates plant productivity.
It also boosts soil fertility.
Nutrient Management helps promote carbon sequestration, simultaneously preventing the degradation of soil, ecosystem, and overall loss of nutrients from the soil.

Also Read:

Unit Related Links
Improvement in Food Resources	Organic and Inorganic Fertilizers	Weed Crop Protection
Types of waste	Biodegradable and Non-biodegradable Substances	Cattle Farming
Storage of Grains	Agriculture Fertilizers	Difference Between Micronutrients and Macronutrients
Plant Breeding	Biofortification	Difference between Fertilizers and Manure
Difference between Compost and Vermicompost	Crop Production	Agriculture Seeds Selection Sowing

Also Read:

Important Science Study Guides
Difference between in biology	Physics Constants	Named Reactions
Difference between in chemistry	Difference between in physics	Periodic Table

CBSE X Related Questions

1.
The reasons for excessive generation of wastes are:
(i) Use and throw policy.
(ii) Increased availability of packaged food.
(iii) Increased construction wastes.
(iv) Non-sorting of dry and wet wastes
- (i), (iii) and (iv)
- (i), (ii) and (iii)
- (i), (ii), (iii) and (iv)
- (ii), (iii) and (iv)
View Solution
2.
What is the function of diaphragm in human respiratory system ? Where is it present in human body ?
View Solution
3.
When an element 'X' reacts with water, it starts floating. Identify the element 'X':
- Potassium
- Calcium
- Sodium
- Iron
View Solution
4.
Which structure in a leaf is mainly responsible for gaseous exchange?
- Xylem
- Stomata
- Phloem
- Cuticle
View Solution
5.
Due to change in length and area of cross-section of a conductor, resistance of conductor changes while resistivity does not change. Why ?
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6.
(a) Study the given electric circuit in which 2 A electric current is flowing between points X and Y.

(i) Using the battery, key, voltmeter and ammeter in this given electric circuit, redraw a circuit diagram in which 2 \(\Omega\) and 4 \(\Omega\) resistors are connected between X and Y in parallel combination.
(ii) Circuit drawn by you, in which resistors are connected in parallel combination, calculate the electric current flowing through 4 \(\Omega\) resistor.
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