1. how does the density of ice compare to that liquid water and why is that property important to aquatic oranisms
a. the density of ice is higher than that liquid water, which means that ice forms from the bottom of lakes upward , protecting aquatic life in waterI
b. the density of ice is lowery than that of liqurd water, which means hat ice forms from he top of lakes downward, protecting aquatic life in witer ***
c. the density of ice water is higher than that liquid water, which means tha ice forms from the top of lakes downward , protecting aquatic life in winter
d. the density of ice water is lower than that liquid water, which means that ice forms from the bottom of the lakes upward, protecting aquatic life in winter
2. which of the following properties of water would be most important in protecting a fish in a shollow pond on a hot summer day?
a. the low density of water in the solid phase**
b. waters strong forces of adhesion
c. the high specific heat of water
d. waters solven properties
someone please help ??
you are missing the second. Shallow water on a hot day absorbs a lot of heat, to keep temps mild, the water has to heat up. So the high specific heat of water is important.
There is a large body of water which this is an actual issue: the Persian Gulf, which is quite shallow, and the temperature of the water runs from 75F to 90F. In the summer, the water is quite hot.
1. To determine the correct answer, let's first understand the concept of density and its relation to water. Density is defined as the mass per unit volume of a substance. It tells us how tightly packed the particles are in a material.
Now, when we talk about the density of ice compared to liquid water, we find that the answer is (b) the density of ice is lower than that of liquid water. This is an important property for aquatic organisms because when water freezes, it expands and becomes less dense. As a result, ice floats on top of liquid water.
Why is this important for aquatic organisms? Let's consider what would happen if ice were denser than liquid water. In that case, when a lake freezes, the ice would sink to the bottom, displacing the liquid water. This would expose the aquatic life to freezing temperatures, potentially harming or killing them.
However, because ice is less dense than liquid water, it forms at the top of lakes and ponds, creating an insulating layer. This layer prevents the rest of the water below from freezing and maintains stable temperatures for aquatic organisms to survive. So, the low density of ice is crucial in protecting aquatic life during winter.
2. To determine the most important property in protecting a fish in a shallow pond on a hot summer day, let's analyze each option:
a) The low density of water in the solid phase: This property, which causes ice to float, is not particularly relevant in the context of a hot summer day in a shallow pond.
b) Water's strong forces of adhesion: Although water's adhesion forces are powerful, they are not directly related to protecting a fish in this scenario.
c) The high specific heat of water: This is the correct answer. Specific heat refers to the amount of heat energy required to raise the temperature of a substance. Water has a high specific heat, which means it can absorb a significant amount of heat before its temperature rises significantly. This property helps regulate the temperature of the water and prevents rapid temperature changes, providing a more stable environment for the fish.
d) Water's solvent properties: While water's ability to dissolve substances is important for many biological processes, it is not specifically relevant to protecting a fish in a shallow pond on a hot summer day.
Therefore, the correct answer is (c) the high specific heat of water.