give two examples of each
1. Modified root
2. Heterogeneous mixture
3. Hemogeneous mixture
4. Desirable Change
Answers
Answer:
These modified roots usually are swollen and assume different forms such as spindle shaped, e.g., radish; top shaped, e.g., beet, turnip; conelike, e.g., carrot; indefinite shape, e.g., sweet potatoes (Fig. 7.1). Dahlia, Asparagus, Portulaca are some other examples of plants with modified roots for food storage.
Examples include sand and sugar, salt and gravel, a basket of produce, and a toy box filled with toys. Mixtures in two or more phases are heterogeneous mixtures. Examples include ice cubes in a drink, sand and water, and salt and oil. The liquid that is immiscible form heterogeneous mixtures.
Some examples of homogeneous mixtures are: Water and sugar. Water and salt.
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In heterogeneous mixtures, the constituents appear separately.
oil and water.
a soil sample.
sandy water.
a carbonated beverage or beer (the CO2 gas appears separately within the liquid)
orange juice with pulp in it.
water with ice cubes in it.
Desirable Changes: Those changes which are desired to occur that is, we want them to take place are known as desirable changes. Examples: ripening of fruits, germination of seeds etc. Undesirable change: Those changes which we do not want to take place are called undesirable changes...