GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Water is a polar molecule
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Water is less dense as a solid than as a liquid
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Water has a high level of hardness when frozen
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Water holds less air at lower temperatures
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Detailed explanation-1: -Some species, like koi and gobies, may burrow into soft sediments and go dormant like frogs and other amphibians, but most fish simply school in the deepest pools and take a “winter rest.” In this resting state, fishes’ hearts slow down, their needs for food and oxygen decrease, and they move about very little.
Detailed explanation-2: -Underneath the frozen upper layer, the water remains in its liquid form and do not get the freeze. Oxygen is trapped beneath the layer of ice. As a result, fish and other aquatic animals find it possible to live comfortably in the frozen ponds.
Detailed explanation-3: -Which of these is a property of ice that allows fish to survive in ponds when air temperatures are below 0° C? Ice floats, insulating warmer liquid water below it.
Detailed explanation-4: -The unique salts in the pond lower the freezing point, which is why this saline pond can exist in a place where the temperature ranges from minus 50 to plus 10 degrees Celsius (-58 to +50 F).