Question

SCIENCE
Section A
1.Name the gas which supports burning.
2. What change do you observe in a banana when it ripens?
4.Name three methods that can be used to separate solids from other solids.
5.At which place on a magnet, its magnetic force is maximum.
6.Name the device that helps in breaking the circuit.
7.Name the type of object that does not give out its own light.
8.What coloured dustbin is used for collecting non-biodegradable waste materials?
9. The lungs and heart are protected by
10Fforestland, grassland, deserts are included under
habitat.

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Answer 1

Answer:

1 oxygen supports burning

2 An enzyme called amylase breaks down the starch in the fruit into its smaller sugar components, called glucose, making bananas sweet. The enzyme pectinase softens bananas by breaking down the cell walls in the fruit.

4 magnetic separation , hydraulic washing, froth floatation

5 at the poles of the magnet

6 mcb( miniature circuit breaker )

7 non luminous object

8 blue dustbins

9 rib cage

Answer 2

Answer:

1. oxygen

2. it includes both physical change and chemical change

4. picking , threshing and sublimation

5. North Pole

6. electric switch

7. the luminous object

8. blue

9. rib cage

10. terrestrial biomes

Explanation:

your problem's solution here.