permissible level of nitrate ions in the drinking water is​

Answer:

Ques: What more does Bill say about Lutkins and his family?

Answer: Bill told the lawyer that he knew the mother of Lutkins’. He said that she was a terror. He narrated an incident when he took a trunk to her once and she almost took his skin off because he did not carry it carefully. He also said that she was very tall and bulky. She was very quick and could talk a lot. He said that Lutkins must have heard that somebody was chasing him and consequently would have gone into hiding at his mother’s place.

closing balance of cash is obtained by preparing cash account

answer is cash

Explanation:

cash account.

above answer is correct!

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Answer:

Consider a vector field F that represents a fluid velocity: The divergence of F at a point in a fluid is a measure of the rate at which the fluid is flowing away from or towards that point. ... If there is no gain or loss of fluid anywhere then div F = 0. Such a vector field is said to be solenoidal.

Answer:

Air is made up of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and other gases in meager amounts. Water vapor is also a constituent of air in varying amounts along with dust particles. The molar mass of dry air or air with no/low quantity of water vapor in it is 28.97g/mol. We can find out the average molar mass of a mixture of gases by using a simple formula in which we take the summation of the molar mass of each gaseous component multiplied by its mole fraction.

Answer:

Air, usually referred to as the atmosphere, is a mixture of several gases.

Step-by-step explanation:

Air's chemical composition is as follows:

• 78.09 percent nitrogen, 20.95 percent oxygen, 0.93 percent argon, 0.04 percent carbon dioxide, and trace amounts of other gases. Along with dust particles, water vapour is a component of air in variable proportions. Air that is dry or that contains little to no water vapour has a molar mass of 28.97g/mol.
• By applying a straightforward formula that takes the sum of the molar masses of each gaseous component multiplied by its mole fraction, we may determine the average molar mass of a mixture of gases.
• The most significant chemical constituent of air is oxygen. It has an atomic number of 8 and the symbol O. A highly reactive gas, oxygen easily forms oxide connections with other elements.
• A trace gas with a concentration of just 0.04 percent, carbon dioxide. Trace gases are gases that are found in the atmosphere, but only in extremely minute quantities.
• Nitrogen, which makes up 78 percent of the air, is the most plentiful and pure element. It has an atomic number of 7 and the letter N.
• Argon is the third most prevalent element in the atmosphere, with a concentration of 0.93 percent. A noble gas, that is. Argon has the atomic number 18 and the symbol Ar.
• Depending on the temperature, the amount of water vapour in the atmosphere ranges from roughly 0.01 percent to 4.24 percent.
• Dust particles are small, solid particles. Aeolian dust is another name for atmospheric dust. These particles include those that come from soil, pollution, or volcanic eruptions.

Thus, air pollution worsens the symptoms of those who are already unwell and raises the risk of respiratory infections, heart disease, stroke, and lung cancer. Air pollution has disproportionately negative health consequences on children, the elderly, and residents of low-income areas.

To know on air pollution and effects of air pollution, click on the below link

https://brainly.in/question/229563

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https://brainly.in/question/32154220