the dumping of large amount of sewage into the sea can cause oxygen in the water to be used up......how oxygen is used up

Oxygen-consuming wastes comprise of raw sewage from municipalities and other wastes from paper mills, tanneries, food-processing plants and agriculture; these cause a proliferation of aerobic decomposers who consume dissolved oxygen (DO) in water m..

Most of the oxygen is transported in a combined state. Some of the oxygen is present in solution in the blood. For each decilitre of blood, 4.6ml oxygen enters the blood in the lungs. Of this only 0.17ml remains in the plasma in the solution form. Remaining enters the..

Water is a unique and remarkable compound, essential to all forms of life. Human beings and the flora and fauna cannot survive without water on this planet. A large amount of life on this planet is aquatic based i.e., can only survive in water. It ..

The electrolysis cell consists of a large vessel carrying two electrodes. The electrodes used here are made of platinum. Hydrogen is liberated at the cathode (-), and oxygen is liberated at the anode (+). The gases are collected in two separate cylinders inverted on th..

1. For drinking and for life processes. On an average, a man consumes about 60,000 to 80,000 litres of water in his lifetime. The body of an adult contains nearly 40 to 50 litres of water at any given time and water constitutes about 66% of the average body make u..

Which object can be used to measure the amount of water in the fishbowl? => Figure 1 or Figure 2 or both Figure 1 and Figure 2 or None of these..

Which object can be used to measure the amount of water in the fishbowl? => both Figure 1 and Figure 2 or Figure 2 or Figure 1..

Until all the calcium and magnesium ions have precipitated, soap will not produce lather with water. Thus, a part of the soap is wasted, and washing becomes wasteful. This is also the reason why hard water is not fit for washing (laundry) purposes. In industry, the use..

The following steps can be followed to conserve water 1) Careful and economical use of water for domestic and industrial purposes. 2) Wastage of irrigation water can be minimized by over avoiding over watering, checking leakage in irrigat..

The factors contributing to water problems are: 1) Rise in population and expansion in industry has increased the demand for water. The average per capita consumption of water in a modern society is 350 700 liters per day. 2) Deforestation has growth reduced..