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Answers
Explanation:
if some water enters in a closed can of dried seeds, the seeds absorb water by imbibition and osmosis and swell up. The swelling up of seeds exerts a force on the walls of the can, and hence the can bursts open.
jams and pickles do not spoil easily because they are added with preservatives. sugar is added in jams and edible oils are used in pickles. ... also, they are kept n jars or packages which do not easily allow bacteria to grow or to react the jam or pickle with air water.
The roots of some plants are seen growing out through crevices in the wall because they need moisture and heat to do the process of Photosynthesis and also the roots get bigger and bigger as they grow, because of lack of space or soil may be the cause of them growing out and so they need stability and clinging in the cervices of the wall
On the other hand, freshwater fish can't survive in the ocean or saltwater because the seawater is too salty for them. The water inside their bodies would flow out their cells, and they wiil die of dehydration. Both processes are called Osmosis.
Plants growing in fertilized soil are often formed to wilt, if the soil is not adequately watered because of flaccidity or a decrease in turgor pressure exerted by the absorbed water on the cell wall of plants.
The potato cells have cell sap of higher concentration than the surrounding water. As a result, endosmosis occurs in which water molecules travel to the inside of the potato cells, making them firm. Due to the inflow of water, the cells become turgid, so the potato cube becomes firm and increased in size.
Excess application of soluble fertilisers in the soil makes the soil solution hypertonic as compared to the cell sap, and exosmosis takes place. Plants suffer water loss. Therefore, plants begin to die when excess of soluble fertilisers are added to the soil.
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