Question

ition 4) (d) v (b)Noise pollution (c)Soil pollution Which of these gases Comprises 78 Percent of the atmosphere? Camfrogen (b) Oxygen (c) Carbon dioxide (d) F Which of these is a modified lever of the first class? (a) Wedge (b) Fixed Pulley © Wheel and axle (d) Pu 5) Q-2 Fill in the blanks: 1. is mainly used as fuel for running vehicles. 2. eruptions have been known to knock down entire forest 3 The environment consists of non-living things. 4. Air consists of oxygen which support 5. Like the sun, even is a natural source of energy. Q-3 Write True or false. 1. The abiotic environment consists of non-living things. 2. Artificial satellites are not man-made. 3. Coal is not a fossil fuel. There is no atmosphere on the moon. 5. Work is done when, you hit a ball with a bat. 4. lowing:Like sun ,even _ is a natural source of energy

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Answer 1

Answer:

don't no and please don't reply

Answer 2

Answer:

Plz write properly. Hardly any one can understand.

MCQ-

Carbon dioxide comprises 78 percent of the atmosphere.

Fixed pulley is the example of modified lever of first class .

Fill in the blanks-

1.Petrol

3.abiotic

4.live

5.Wind and Water

Write True or False

1.True

2.False

3.False

4.True

5.True

4.

wind

Plz mark me brainlliest.