पुनर्रचित सेतू अभ्यास आठवी – दिवस तेविसावा | Bridge Course 2022-23

विषय – मराठी

सदर सेतू अभ्यास हा वरील विषयाचा असून खाली दिलेले प्रश्न आपल्या वहीत लिहून त्याची उत्तरे वहीत लिहावीत. व आजच्या दिवसाचा सेतू अभ्यास पूर्ण करावा. हा सेतू अभ्यास पूर्ण करताना आपल्याला काही अडचणी आल्यास आपण आपल्या वर्ग शिक्षक व पालकांची मदत घेऊ शकता.

विषय – गणित

विषय – इंग्रजी

A) Read following passage and choose correct answers.

Garbage is a great environmental hazard. It comes from various sources used paper, Tiffin packing’s, plastic bags, ice-cream wrappers, bottle caps, fallen leaves from trees and many more. Garbage makes the premises ugly, unkempt and breeds diseases. It also contains organic matter such as leaves which can enrich soil fertility. A compost pit can be made at a convenient location where the leaves can be placed with layers of soil and an occasional sprinkling of water. This would help decomposition to make valuable fertilizer.

Q1: Garbage originates from

(a) Used paper, Tiffin, packing’s, plastic bags and fallen leaves from trees

(b) Left over’s of food

(d) Building materials

Q2: Fallen leaves from trees are useful because they

(a) Solve the problem of fuel wood in village households.

(b) Enrich water quality

(d) Beautiful landscape

4. Solved Activity/ Demo: – PLASTIC IN OUR LIVES

1. Plastics on burning or heating produce toxic gases and smoke.

2. Plastic wastes littering the roadsides cause disease causing microorganisms as they choke the

drains.

3. Plastics dumped in water bodies pose a threat to aquatic life.

4. Plastics prevent the rainwater from seeping into the ground.

5. Dumping of plastics in the ground affects the plants growing in the area as they do not get enough water from the soil.

Q.I what happens when people dump plastics in the ground?

Q.2 when we burn plastic what happens?

5. Practice:-VERMICOMPOSTING

The method of preparing compost with the help of red worms is called vermicomposting. Red worms do not have teeth. They have a structure gizzard which helps them in grinding their food. A red worm can eat food equal to its own weight. After 3-4 weeks loose, soil-like material is observed which the vermicompost is. Dry it in the sun for few hours and now it can be used in fields or garden

Q.1 what is vermicomposting?

Q.2 How red worm prepare vermicompost?

6. Extension Activity/ Parallel Activity/ Reinforcement: –

RECYCLING OF PAPER

1. Let excess water drain off.

2. Remove the sheet and keep it under the sun for drying.

3. Make a wet paste of this paper by pounding it.

4. Soak the remaining water with the cloth.

5. Submerge small pieces of paper in water.

6. Spread the paste uniformly on a wire mesh frame.

7. Your recycled paper.

RECYCLING OF PAPER

1. Submerge small pieces of paper in water.

2. Make a wet paste of this paper by pounding it.

3. Spread the paste uniformly on a wire mesh frame.

4. Let excess water drain off.

5. Soak the remaining water with the cloth.

6. Remove the sheet and keep it under the sun for drying.

7. Your recycled paper.

विषय -विज्ञान / परिसर अभ्यास भाग 1

या विषयाचा अभ्यास पूर्ण झाला आहे.

विषय – इतिहास ना.शास्त्र

या विषयाचा अभ्यास पूर्ण झाला आहे.

विषय – भूगोल

या विषयाचा अभ्यास पूर्ण झाला आहे.