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There are several factors that could impact the levels of dissolved oxygen in natural water during the evening and night time. None of these are over riding enough to state that the DO levels would go up or down in all situations:

* Cooler temperatures would increase the solubility of oxygen in the water. Oxygen already in the water would tend to stay there. * Temperatures in the water would go down decreasing the activity of any decomposition, slowing the reduction of oxygen levels. * Plants (algae etc.) would stop producing oxygen by photosynthesis

* Plants would continue their respiration and consume oxygen * Winds are often calmer in the evening reducing aeration of the water through wave action

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What does the level of dissolved oxygen go down after sunset?

The level of dissolved oxygen in water can decrease after sunset due to the lack of photosynthesis by aquatic plants. Without sunlight, plants stop producing oxygen through photosynthesis, while organisms in the water continue to consume oxygen through respiration, leading to a decrease in dissolved oxygen levels.


What is the effect of temperature on the amount of oxygen that water a different temperatures can hold?

As a gas, its solubility in water decreases as temperature increases.Boiling water produces oxygen gas bubbles, which means you can get out most of the oxygen dissolved in water by boiling water, thus, for example, a fish can't live in water you boiled.


Why do you sweat more at sea level than at high elevation?

You sweat more at sea level than at high altitude because the air is warmer and more humid at lower altitudes, which increases your body's need to cool down through sweating. Additionally, at higher elevations, the lower oxygen levels place less stress on the body, reducing the need for sweating to cool down.


What breaks water into hydrogen and oxygen?

Electrolysis breaks water into hydrogen and oxygen. When an electric current is passed through water, the water molecules (H2O) are split into hydrogen gas (H2) at the cathode and oxygen gas (O2) at the anode.


High oxygen to low oxygen?

From areas of high oxygen concentration to low oxygen concentration, diffusion occurs as oxygen molecules move down their concentration gradient, from where there is more oxygen to where there is less oxygen. This process enables the cells in the body to take in oxygen and use it for cellular respiration, supporting various physiological functions.

Related Questions

What does the level of dissolved oxygen go down after sunset?

The level of dissolved oxygen in water can decrease after sunset due to the lack of photosynthesis by aquatic plants. Without sunlight, plants stop producing oxygen through photosynthesis, while organisms in the water continue to consume oxygen through respiration, leading to a decrease in dissolved oxygen levels.


Why does the level of dissolved oxygen go down?

Dissolved oxygen levels can decrease due to processes like respiration by aquatic organisms, decomposition of organic matter, and insufficient mixing of water. Pollution, high temperatures, and excessive plant growth can also lead to decreases in dissolved oxygen levels in water bodies.


What is the function of a dearator on a steam boiler?

Deaerator removes dissolved oxygen from boiler water. The condensate cascades down a number of perforated trays and its surface area is greately increased. This enables dissolved oxygen to come out. Further bleed steam is supplied to deaerator and due to this the atmosphere is predominantly of steam. So the partial pressure of oxygen above the water level is very very low. When a gas exists above a liquid level, the solubility gas in the liquid depend upon its partial pressure. So oxygen comes out of water. Deaerator outlet water has less than 0.05 ppm dissolved oxygen. This is furthe removed by dizing of Hydrazene (N2H2). =A.D.PALAMWAR


When was Down on Sunset created?

Down on Sunset was created in 1991.


How do decomposers utilize dissolved oxygen in the water during their life processes?

Decomposers, like bacteria and fungi, use dissolved oxygen in water to break down organic matter through a process called respiration. This helps them obtain energy for their life processes.


What is the relationship between bod and do?

BOD (biological oxygen demand) is a measure of the amount of oxygen needed bymicrobes to break down the organic matter in a sample of water. DO (dissolved oxygen) is the amount of oxygen dissolved in the water. When BOD is high, it means there's a lot of organic contaminants in the water, and the microbes are working overtime to break it down. They use up oxygen while doing this, so when BOD is high, DO is low. When the microbes finish breaking down the organic contaminants, their numbers drop from lack of food (a lower BOD). DO usually goes back up again


What are two ways that the amount of dissolved oxygen in water can decrease?

The amount of dissolved oxygen in water can decrease due to increased water temperature, which reduces oxygen solubility, and through the decomposition of organic matter, where bacteria consume oxygen as they break down dead plants and animals. Additionally, pollution from nutrients like nitrogen and phosphorus can lead to algal blooms, which, upon decomposition, further deplete oxygen levels.


Why does the nitrogen level in the atmosphere is higher than the oxygen level?

Because due to the over pollution and cutting down the tree's level of Oxygen is decreasing .The level of Nitrogen always remains constant in the atmosphere . The level of Nitrogen doesn't' depend on the level of the Oxygen level.


How are chemical bonds dissolved?

Chemical bonds are not dissolved they are broken down and compounds becomes dissolved.


What breaks down tin?

Tin can be broken down through chemical reactions such as oxidation by oxygen in the air. It can also be dissolved in strong acids or alkalis to break down into tin compounds. Additionally, tin can be broken down through electrolysis processes.


What bodies of water have more dissolved oxygen?

Fast flowing mountain streams have more dissolved oxygen than slow flowing rivers down in the flat valleys. The oxygenation is higher because the tumbling water of the mountain stream increases the area open to absorption.


At what time is sunset when the sun starts to go down?

Sunset occurs when the sun starts to go down, typically in the evening. The exact time of sunset varies depending on the location and time of year.