Bissoy.com
Doctors Medicines MCQs Q&A

How is the thickness of the ozone in a column of air from the ground to the top of the atmosphere measured?

How is the thickness of the ozone in a column of air from the ground to the top of the atmosphere measured? Correct Answer Dobson units

Dobson unit (DU) is used to measure the thickness of the ozone in a column of air from the ground to the top of the atmosphere. A layer of pure ozone that is 0.01 mm thick at standard temperature and pressure is equivalent to one Dobson unit.

Related Questions

Which of the following statements is/are correct concerning Ozone gas? 1. Good ozone is found in the upper part of the atmosphere called the Troposphere. 2. The thickness of the ozone in a column of air from the ground to the top of the atmosphere is measured in terms of Dobson units (DU).  3. Research indicates that depletion of the stratospheric ozone layer is being reduced worldwide.  Select the correct answer using the code given below.
Consider the following Column A and Column B in which the names of microorganisms are given in Column A and the groups to which they belong are given in Column B: Column A Column B (a) Aspergillus (i) Algae (b) Lactobacillus (ii) Bacteria (c) Paramecium (iii) Fungi (d) Spirogyra (iv) Protozoa   (v) Virus The correct match of the items of Column A with that of Column B is
In the following question, two columns are given containing three phrases each. In the first column phrases are A, B, and C and in the second column, the phrases are D, E, and F. A phrase from the first column may or may not connect with phrase from the second column to make grammatically and contextually correct sentence. There are five options, four of which display the sequence(s) in which the phrases can be joined to form a grammatically and contextually correct sentence. If none of the options forms a correct sentence after combination, select ‘None of these’ as your answer. Column 1  Column 2 A. There is always a back-to-school atmosphere at Westminster in the autumn, but it will be intensified this D. investment to fund life at university, a survey has suggested. B. Students facing a financial shortfall have increasingly turned to cryptocurrency E. industry and is unlikely to improving before the end of the year, according to Vauxhall Motors. C. The global shortage of computer chips has had a significant impact on the car F. year by the resumption of parliamentary business unmuffled by Covid restrictions.
Consider the following statements for Euler’s equation to find the critical load of a column : 1. Critical load of a column is proportional to the flexural rigidity. 2. Critical load of a column depends upon yield stress. 3. Critical load of a column is inversely proportional to the length of the column. 4. Critical load of a column is inversely proportional to the square of the length of the column. Which of the above statements are correct?
In the following question, two columns are given containing three phrases each. In the first column phrases are A, B, and C and in the second column, the phrases are D, E, and F. A phrase from the first column may or may not connect with phrase from the second column to make grammatically and contextually correct sentence. There are five options, four of which display the sequence(s) in which the phrases can be joined to form a grammatically and contextually correct sentence. If none of the options forms a correct sentence after combination, select ‘None of these’ as your answer. Column 1 Column 2 A. Blue-green algae have been spotted at Snowdonia lake since May D. of the 27-nation bloc, amid fury over the forced diversion of a passenger jet to arrest an opposition journalist. B. Eiderdown is one of the warmest natural fibres on the planet, both light and highly E. tropical storm to a hurricane with top winds of 80 mph (128 kph)as it crossed western Cuba and entered the Gulf of Mexico. C. The European Union has agreed to impose sanctions against Belarus, including banning its airlines from using the airspace and airports F. insulating, and is used to make some of the world's best duvets and quilts.
In the following question, two columns are given containing three phrases each. The phrases are labelled A, B, and C in the first column and D, E and F in the second column. A phrase from the first column may or may not connect with a phrase in the second column to make a grammatically and contextually meaningful sentence. Identify the correct option from those given below that gives the correct sequence in which one or more sentences can be formed. If none of the options makes it possible for a meaningful sentence to be formed, indicate 'No of these' as your answer. Column 1 Column 2 A.The Industrial Revolution brought an infusion of untreated chemicals and wastes  D. productivity of both indoor and outdoor workers. B. Air pollution comes from both E. into local streams that served as the water supply. C. A number of studies show that pollution has an adverse effect on the  F. natural and human-made sources.
In this question, a passage and a statement related to it have been given. Read carefully the verse and review the statement based on it. Delhi, which is one of India's capital an d one of the largest cities in the world, is undergoing severe crisis, due to its high level of urbanization, increasing population and high levels of pollution. Studies have proven that Are the biggest factors of pollution used for industrial and domestic use? And due to their use, people here emit large quantities of nitrogen oxides (NOx), ozone (O3), black carbon (BC) and microorganisms (PM). According to the 2015 Global Burden of Disease report, there were 1.09 million deaths due to PM 2.5 in India. Air pollution was included as one of the 10 biggest threats to health. According to the World Health Organization, 37 cities of India are among 100 worst polluted cities in the world, where PM10 was found to be the highest ever. For the production of ozone, together with sunlight and heat, nitrogen oxides (NOx) and organic compounds (VOCs) are needed simultaneously. Therefore, in the summer months, ozone is produced in large quantities in the cities. Statement: Air pollution is one of the top 10 factors affecting health in India. Select the most suitable from the following options A-statement is absolutely true B-statement is probably true C-statement can not be reviewed D-statement is completely false
Thickness of 8 tyres L, M, N, O, P, Q, R and S is compared. Thickness of no two tyres is same. Thickness of N is more than L but less than 6 tyres. Thickness of O is more than M but less than Q. Thickness of P is less than only two tyres. Thickness of Q is not more than P. Which of the following statement is not correct?
In the following question, two columns are given containing three phrases each. In the first column phrases are A, B, and C and in the second column, the phrases are D, E, and F. A phrase from the first column may or may not connect with phrase from the second column to make grammatically and contextually correct sentence. There are five options, four of which display the sequence(s) in which the phrases can be joined to form a grammatically and contextually correct sentence. If none of the options forms a correct sentence after combination, select ‘None of these’ as your answer.  Column 1  Column 2  A. Scientists who systematically eavesdropped on bat roosts in Costa Rica have discovered  D. they do not act on their climate promises, and it now seems the UK is in her sights.  B. The team has spent six years developing a completely new way of collecting the signal  E. combine all the data into images that are not only of enormous scientific interest and also of great beauty.  C. The Swedish activist has a reputation for calling out world leaders when  F. that baby-bat babbling bears a striking resemblance to that of human infants.
In the following question, two columns are given containing incomplete sentences. In the first column, the phrases are (A), (B), and (C), and in the second column the phrases are (D), (E), and (F). You have to match the phrases of column (1) with those of column (2) and make grammatically and contextually correct sentences. If none of the options given forms a correct sentence after combination, select ‘None of these’ as your answer. Column 1 Column 2 A-The accidental firing of the missile broke the armistice D-and destroyed the chance of peace between the two nations B-After a year of fighting, the two armies agreed to an armistice E- do not realise they could be down-and-out too C-People who think homeless people are dregs of society F-would allow the soldiers to rest on Christmas day