IB ACIO 20 February 2021 Afternoon Shift
For the following questions answer them individually
Which of the following sentence is/are correct about crop rotation?
1. Crop rotation helps return nutrients to the soil without synthetic inputs.
2. Crop rotation is the practice of planting different crops sequentially on the same plot of land to improve soil health.
3. Crop rotation deteriorates the soil structure as same nutrients are used time and time again.
Which of the following statements defines 'chromatography'?
1. It is the process of separation of components of a mixture.
2. It is used to separate colours in a dye.
3. It is used to separate a mixture of oil and water.
Select the correct answer using the codes given below.
Match List I and List II and select the correct answer by the using the code given below the list :
Consider the following initiatives taken to improve female labour work participation rate in the recent past.
1. Women Helpline Scheme (WHL) has been implemented since 1 April 2016 to provide 24 hours emergency and non-emergency response to women affected by violence and to provide information about women-related government schemes/programmes across the country through a single uniform number (185)
2. The One Stop Centre (OSC) scheme facilitates access to an integrated range of services including police, medical, legal, psychological support and temporary shelter to women affected by violence. One Stop Centres are being set up in all districts of the country.
Which of the statements given above is/are correct?
Which instrument is predominantly used in both, Hindustani and Carnatic music? It does not play melody but supports the singer or another instrument.
Which of the following evidence prove/s that the Himalayas are still rising?
1.The frequent occurrence of earthquakes in the Himalayan region shows that the Himalayas have not yet attained an isostatic equilibrium and they continue to rise further.
2. The Himalayan rivers have small basins and catchment area.
3.Some of the fossil formations found in the Shiwalik hills are also available in the Tibet Plateau.
Select the correct answer using the codes given below.
How does air pollution affect living organisms?
1. Sulphur dioxide irritates the respiratory tissues.
2. Nitrogen oxides, especially NO2 , can irritate the lungs.
3. Suspended particles in the air aggravate our respiratory tract, leading to bronchitis and asthma.
4. Many volatile organic compounds and toxic particulates can cause mutations. reproductive problems or cancer.
Select the correct answer using the codes given below.
In April 2018, who among these became the highest ranked men's badminton player in the world?
