A vector field F is said to be solenoidal.​

closing balance of cash is obtained by preparing cash account

answer is cash

Explanation:

cash account.

above answer is correct!

by the way thanks, tanishqa for giving heart

• The permissible level of nitrate ions in the drinking water is 10mg/L.
• The environmental protection agency standard for nitrate in drinking water is 10 milligrams of nitrate(measured as nitrogen)per liter of drinking water(mg/L).
• Drinking water with levels of nitrate at or below 10mg/L is considered safe for everyone.
• The maximum limit of nitrate in drinking water is 50ppm.
• Nitrate in water is undetectable without testing because it is colourless, odorless, and tasteless .

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

To know on the controls of air pollution, click on the below link

https://brainly.in/question/32154220

Answer:

always consider whether you should use the passive or active voice. It will depend on what you, the writer, want to convey: if you want to draw attention to the doer, use the passive voice; if your intent is to put the focus on the action, then you should go for the active voice.

Passive voice can be preferable to active voice when the writer wants to be tactful with the reader.

• Passive voice is a verb or a form of a verb where the subject undergoes the action. In other words, the object is acted upon by the subject.
• Passive voice is not generally an engaging tone and is used to present facts as they are. However, an active voice is used when one wants to grip the readers.
• In correspondence with this, the correct answer would be that a passive voice is used when the writer wants to convey tactful information to the reader, which does not generate any element of curiosity in the reader.

SPJ5