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Q: What human activities decrease Dissolved oxygen level?
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When careless human activities decrease the amount of plantlife the amount of runoff usually?

Increases


How can one measure dissolved oxygen levels in the human body?

A good way to measure dissolved oxygen levels in the human body would be to use a pulse oximeter. It is a little device that you can put on a finger or toe to get the measurement.


What are the applications of dissolved oxygen in civil engineering?

Civil engineers often have to do dissolved oxygen tests on lakes, streams, and other bodes of water. This is to monitor human effects on the river.


Which bio-geochemical cycle is least affected by human activities?

The oxygen cycle is least affected by human activities.


Strategies used to balance human activities protect ecosystems?

Human population decrease Recycling Water Re-usage


How oxygen content in human blood is calculated?

first we must measure the haemoglobin .each gm. of human hemoglbin carries 1.39ml oxygen in a 100ml blood. in addition o.0003 ml oxygen will be dissolved in blood at 1mmhg pressure of delivered oxygen.


A process by which nutrients increase in a lake while oxygen levels decrease as a result of human activity is known as?

Eutrophication


In which part of the human circulatory system does the amount of carbon dioxide in the blood decrease and oxygen increase?

In the capillaries surrounding the alveoli.


Which human activity would have the most direct impact on the carbon cycle?

There are a few human activities that would have a direct impact on the oxygen-carbon dioxide cycle. Planting trees and other plants is one of these activities.


What are the human activities during night?

There are some human activities during the night. The human activities are sleeping, eating, drinking, washing dishes, and some other human activities.


Is most of the dissolved salts in the ocean come from human activities?

No. Most of the dissolved salts in the ocean come from the rivers emptying into the ocean. As the rivers flow from their sources to their mouths, they erode their channels and pick up salt and sediments from weathered rock, which are deposited into the ocean at their mouths.


What would happen if human continued to clear and burn vast areas of forests for building?

Oxygen levels will gradually decrease and more species of animals will disappear.