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In the graph below, the concentration of a particular pollutant in a lake is plotted over (alternate) days of a month in winter (average temperature 10 °C) and a month in summer (average temperature 30 °C) Consider the following statements based on the data shown above: i) Over the given months, the difference between the maximum and the minimum pollutant concentrations is the same in both winter and summer. ii) There are at least four days in the winter month such that the pollutant concentration on those days are within 1 ppm of the pollutant concentrations on the corresponding days in the winter month. Which one of the following options is correct?
A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m3 and volumetric flow rate 1 m3/h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m3. The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m3, the volume of the mixed flow reactor should be increased by a factor of
Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer : I. The government has decided to make all the information related to primary education available to the general public. II. In the past, the general public did not have access to all these information related to primary education.
Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer :

I. The government has decided to make all the information related to primary education available to the general public.
II. In the past, the general public did not have access to all these information related to primary education.
According to National Curriculum Framework (NCF), 2005 which of the following statement(s) is/are correct regarding teaching History at the upper primary stage? I. At the upper primary stage, History must focus on developments in India. II. At the upper primary stage, History will take into account developments in different parts of India, with sections on events or developments in other parts of the world. III. At the upper primary stage, History will only take into account development in different parts of India.
Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer : I. Large number of Primary Schools in the rural areas is run by only one teacher. II. There has been a huge dropout from the primary schools in rural areas.
Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer :

I. Large number of Primary Schools in the rural areas is run by only one teacher.
II. There has been a huge dropout from the primary schools in rural areas.
Which of these is a primary air pollutant ?
Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer :

Statement : The State government has decided to appoint four thousand primary school teachers during the next financial year.

Assumptions :
I. There are enough schools in the state to accommodate four thousand additional primary school teachers.
II. The eligible candidates may not be interested to apply as the government may not finally appoint such a large number of primary school teachers.
Which one of the following is not a primary pollutant?