Which of the following statement is/are the advantage/advantages of practising drip irrigation?
1. Reduction in weed
2. Reduction in soil salinity
3. Reduction in soil erosion
Select the correct answer using the code given below. (a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) None of the above is an advantage of practising drip irrigation.
Our Logic – Drip irrigation usually takes place in plain region and not in undulating terrains and it is costly too.It delivers both water and nutrient to the root of the plant directly thus reducing water usage.There by , it does not waste by watering the whole field.Weed can grow when there is water and nutrient available to it , but drip irrigation eliminates this option so reduced weed.Similar logic can be applied to salinity , when a land is wet through capillary action the salt gets accumulated at the top layer, but drip irrigation does not wet the whole land so reduces salinity.Moreover, soil erosion is less when the whole land is wet but aeolian erosion increases when the land is dry and drip irrigation does not wet the whole land so does not reduce erosion per se.Elimination can come in handy for this question.
However , we also tried to find some credible source that can shed some light on this and here is a screenshot of a book –Environmental Issues and Solutions: A Modular Approach By Norman Myers, Scott Spoolman
The reason we take the book as credible because , first of all it is a book not an article , hence more authentic than article or posts over internet.Secondly, it is co-authored by Norman Myers , who is known to define the the term bio-diversity hotspot.Hence more credible coming from an environment specialist.Here is a screenshot of the section of the book for your reference:-
Also the options gives no room to accommodate both 2 and 3 and if one has to choose between the two then 1 and 2 is more justifiable than 1 and 3.
Consider the following statements:
1. The Chief Secretary in a State is appointed by the Governor of that State.
2. The Chief Secretary in a State has a fixed tenure.
Which of the statements given above
is/are correct? (a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Logic – Appointment is an executive function and chief secretary being a central govt employ has to be appointed by governor.This does not mean he is chosen by the governor , it just means he is appointed by the hand and seal of the governor and that’s is what appointment exactly means.The CM can recommend the candidates to the governor to appoint.This seems logical in our.opinion , also state Information commissioner has a similar rank of chief secretary and he is appointed by governor with aid and advise of the CM and cabinet.ARC recommended for fixed tenure but it was rejected.
Reference – We also cross-checked with few people who have access to this kind of information being in government administrative positions and our answer and logic seems correct in this case as well.Lets see what UPSC has to say on this.
Darknet, also known as dark web or darknet market, refers to the part of the internet that is not indexed or accessible through traditional search engines. It is a network of private and encrypted websites that cannot be accessed through regular web browsers and requires special software and configuration to access.
The darknet is often associated with illegal activities such as drug trafficking, weapon sales, and hacking services, although not all sites on the darknet are illegal.
Examples of darknet markets include Silk Road, AlphaBay, and Dream Market, which were all shut down by law enforcement agencies in recent years.
These marketplaces operate similarly to e-commerce websites, with vendors selling various illegal goods and services, such as drugs, counterfeit documents, and hacking tools, and buyers paying with cryptocurrency for their purchases.
Anonymity: Darknet allows users to communicate and transact with each other anonymously. Users can maintain their privacy and avoid being tracked by law enforcement agencies or other entities.
Access to Information: The darknet provides access to information and resources that may be otherwise unavailable or censored on the regular internet. This can include political or sensitive information that is not allowed to be disseminated through other channels.
Freedom of Speech: The darknet can be a platform for free speech, as users are able to express their opinions and ideas without fear of censorship or retribution.
Secure Communication: Darknet sites are encrypted, which means that communication between users is secure and cannot be intercepted by third parties.
Illegal Activities: Many darknet sites are associated with illegal activities, such as drug trafficking, weapon sales, and hacking services. Such activities can attract criminals and expose users to serious legal risks.
Scams: The darknet is a hotbed for scams, with many fake vendors and websites that aim to steal users’ personal information and cryptocurrency. The lack of regulation and oversight on the darknet means that users must be cautious when conducting transactions.
Security Risks: The use of the darknet can expose users to malware and other security risks, as many sites are not properly secured or monitored. Users may also be vulnerable to hacking or phishing attacks.
Stigma: The association of the darknet with illegal activities has created a stigma that may deter some users from using it for legitimate purposes.