Question

What are the changes around us like slow , desirable ,physical , chemical change?

Answer 1

Slow change - revolution of earth.
Desirable change - increase in production of goods.
Physical change - Melting of ice
Chemical change - rusting of iron.

Answer 2

ANSWER
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SLOW CHANGE = RIPENING OF MANGO

DESIRABLE CHANGE = CHANGE IN THE PRODUCT OF THE GOODS.

PHYSICAL CHANGE = MELTING OF WAX

CHEMICAL CHANGE = BOLING OF WATER