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प्रश्न
Give reasons.
Soil is turned over during tilling.
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उत्तर
Soil is turned over during tilling to bring the nutrient-rich lower layers of soil to the surface and to loosen the soil so that air and water can easily reach the roots of plants.
संबंधित प्रश्न
The bread or idli dough rises because of ______.
Complete the following conceptual picture.
Nowadays, ___________ are used for treatment of diarrhoea and treatment of poultry also.
Find an odd one out.
Write a short note.
Land filling sites
Explain biofuel production with the help of diagram.
Complete the paragraph by selecting the appropriate option in parentheses.
(energy, microbial, erosion-proof, reused, purification, environmentally friendly)
Nowadays, instead of chemical catalysts, _______ enzymes are used in the chemical industry. These enzymes are active at low temperature, pH and pressure; due to which _______ is saved and _______ instruments are also not necessary. Enzymes carry out specific processes; hence unnecessary by-products are not formed due to which expenses on _______ are minimised. In case of microbial enzymatic reactions elimination and decomposition of waste material is avoided and enzymes can be _______ Hence, such enzymes are _______.
What is pasteurization?
How are microbes useful in the industry?
The figure below shows a concept of segregation, observe the following figure and answer the questions that follow:
- What is dry and wet waste?
- Why do we need to segregate our garbage?
