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Home/Class 8/Class 8 Science/Page 2

Category: Class 8 Science

NCERT Solutions and important questions for Class 8 science for CBSE 2020-2021.

Discussion Forum Latest Questions

peter
peter
Asked: January 19, 2024In: Class 8 Science

What challenges arise if freshly harvested grains are stored without drying?

Freshly harvested grains with more moisture are prone to spoilage and attacks by organisms, rendering them unfit for use or germination. NCERT Class 8 Science Chapter 1 Crop Production and Management

class 8ncertscience
  • 1 1 Answer
  • 28 Views
  • 1 Vote
Answer
peter
peter
Asked: January 19, 2024In: Class 8 Science

How do farmers protect stored grains from pests and microorganisms?

Farmers use jute bags, metallic bins, silos, and granaries for storage. Neem leaves are used at home, while large godowns may require specific chemical treatments. NCERT Class 8 Science Chapter 1 Crop Production and Management

class 8ncert 2024science
  • 1 1 Answer
  • 82 Views
  • 1 Vote
Answer
peter
peter
Asked: January 19, 2024In: Class 8 Science

Why is it important to dry harvested grains before storage?

Drying harvested grains reduces moisture, preventing spoilage and attacks by insects, bacteria, and fungi, ensuring the grains remain fit for use and germination. NCERT Class 8 Science Chapter 1 Crop Production and Management

class 8ncert 2024science
  • 2 2 Answers
  • 52 Views
  • 2 Votes
Answer
piku
piku
Asked: January 19, 2024In: Class 8 Science

Do weedicides have any impact on the person handling the weedicide sprayer, and what precautions should be taken?

Weedicides may affect the health of the person handling the sprayer. Precautions include covering the nose and mouth with a cloth during spraying to minimize health risks. NCERT Class 8 Science Chapter 1 Crop Production and management

class 8ncertscience
  • 1 1 Answer
  • 83 Views
  • 0 Votes
Answer
piku
piku
Asked: January 19, 2024In: Class 8 Science

What is the process of separating grain seeds from the chaff called, and how is it done?

The process is called threshing. It is carried out using a machine called a ‘combine,’ which functions as both a harvester and a thresher. NCERT Class 8 Science Chapter 1 Crop Production and Management

2024class 8 sciencencert
  • 2 2 Answers
  • 24 Views
  • 1 Vote
Answer
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