Some important facts for the Earth MCQs with Explanations
This topic provides a quick revision of important facts related to the Earth, including its structure, atmosphere, hydrosphere, biosphere, landforms, climate, natural resources and environmental features. It is designed to help aspirants revise key concepts and frequently asked facts for UPSC, State PCS, SSC, CDS, NDA, Railway and other competitive examinations.
Which one of the following is not the objective of smart city development?
Correct Answer:
(C) Stabilizing quality of life
The Smart City Mission is an innovative and new initiative by the Government of India to drive economic growth and improve the quality of life of people by enabling local development and harnessing technology as a means to create smart outcomes for citizens. The core infrastructure elements of the mission are-
Adequate water supply.
Assured electricity supply.
Sanitation including solid waste management.
Efficient urban mobility and public transport.
Affordable housing, especially for the poor.
Robust IT connectivity and digitalization.
Good Governance, especially e-Governance and people's participation.
Sustainable environment.
Safety and security of citizens, particularly women, children and the elderly.
Health and Education.
Ques: 2
What does EPA stand for –
Correct Answer:
(C) Environment Protection Agency
Environment Protection Agency (EPA) is an agency of the Federal Government of the United States which was created for the purpose of protecting human health and the environment by writing and enforcing regulations based on laws passed by the Congress. It was established on 2 December 1970.
Note: The Environmental Information System (ENVIS)'s 'Centre on Population and Environment' is located in International Institute for Population Sciences (IIPS), Mumbai.
Ques: 3
N.E.A. Stands for:
Correct Answer:
(B) National Environment Authority
The National Environment Appellate Authority (NEAA) better known as NEA was set up by the Ministry of Environment and Forest to address cases in which environment clearances were required in certain restricted areas. It was established by the National Environment Appellate Authority Act 1997 to hear appeals with respect to restriction of areas in which any industries, operations or processes shall or shall not be carried out, subject to certain safeguards under the Environment (Protection) Act, 1986. On the establishment of National Green Tribunal on 18th October, 2010, under National Green Tribunal Act, 2010, the NEAA stands dissolved.
Ques: 4
Eco-Mark is given to an Indian product which is –
Correct Answer:
(C) Environment-friendly
Eco-mark is a certification mark issued by the Bureau of Indian Standards (The National Standards Organization of India) to products conforming to a set of standards aimed at ensuring the least impact on the ecosystem. The marking scheme was started in 1991.
Note: Eco Mark scheme was instituted by the Government of India for labelling of environment friendly products. Notably this scheme is being administered by the Bureau of Indian Standards. It is important to mention here that the scheme covers products categories like Soaps and detergents, Food items, Lubricating oils, Packing/packaging materials, Architectural paints and powder coatings, Batteries, Electric and Electronic Goods, Food additives, Wood substitutes, Cosmetics, Aerosols and propellants, Plastic products, Textiles, Fire-extinguisher Leather and coir & coir products.
Ques: 5
Sustainable agriculture means:
Correct Answer:
(C) To utilize land so that its quality remains intact
Sustainable agriculture is the production of food, fibre or other plants or other animal products using farming techniques that protect the environment, public health, human communities and animal welfare. In short, it is proper utilization of the land without affecting the environment so that it's quality remain intact. Use of chemical fertilizers and pesticides has adversely affected soil health. To cope up with this, National Mission for Sustainable Agriculture (NMSA) has been formulated for enhancing agricultural productivity, water use efficiency, promoting nutrient management, and livelihood diversification through the adoption of sustainable development pathways.
Ques: 6
Which one of the following States in India has introduced the ‘Greenhouse Farming’:
Correct Answer:
(B) Punjab
Mark fed of Punjab and Sayag Group of Israel signed an agreement to grow vegetables in Greenhouses Farming on 21 April, 2001. Greenhouse farming is the unique farm practice of growing crops within sheltered structures covered by a transparent or partially transparent material.
Ques: 7
Many transplanted seedlings do not grow because:
Correct Answer:
(C) Most of the root hairs are lost during transplantation
Many transplanted seedlings do not grow because most of the root hairs are lost during transplantation. The function of root hairs is to collect water and mineral nutrients present in the soil and take this solution up through the roots to the rest of the plant. These are made up of cellulose and nominal Pectin which helps it as a gelling agent with the soil. Another reason is the use of fertilizers which increases the concentrations of the soil and make it difficult for plants to absorb water. This situation causes plant cells causing the leaves turn brown.