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Which of the following statements are true about ecosystem? Select the correct answer from the codes: 1. Ecosystem comprises both biotic and abiotic components. 2. Solar energy is the main driving force of the ecosystem. 3. Ecosystem is a closed system. 4. Ecosystem does not have its own productivity.
Consider the following statements and choose the correct answer:
1. The ecosystem is a major ecological unit
2. The function of ecosystem is related to the flow of energy and the cycling of materials through the structural components of the ecosystem
3. The major functional unit of the ecosystem is the population
4. The ecosystem has historical aspects: the present is related to the past, and the future is related to the present
There are six persons Gauri, Gurmeet, Geet, Ginni, Garima, and Girish, who take part in a race. Girish comes first in the race while Ginni comes the last. Garima comes after Gauri, who comes right after Girish. Gurmeet comes before Ginni but after Geet. Who comes at the fourth position in the race?
Lotic ecosystem refers to
Consider the following statements with respect to the Export Preparedness Index, 2020: 1. It was published by the NITI Aayog in partnership with the Institute of Competitiveness. 2. It examines the export ecosystem of Indian States and Union Territories. 3. Policy, Business Ecosystem, Export Ecosystem and Export Performance are the four pillars of the Export Preparedness Index. 4. Gujarat emerged as the top-performing State in the 'Coastal States' category, followed by Kerala and Tamil Nadu. 5. In the category of 'Landlocked States', Madhya Pradesh is the best-performing State. Among 'Himalayan States' and 'City-States' Himachal Pradesh and Delhi are the top-performing States respectively. Which of the above statements are true?
Which of the following statements are correctly matched? a) Pyramid of number in Grassland Ecosystem is upright. b) Pyramid of Biomass in Pond Ecosystem is inverted. c) Pyramid of Energy is always upright. d) Pyramid of Biomass in Forest Ecosystem is inverted. Choose the correct answer
An ecosystem is joined by thousands of species, if a problem occurs causing a species to become extinct, it may not affect the proper functioning of the ecosystem initially, but as more and more species are removed, the ecosystem becomes dangerously weak over a period of time. Which hypothesis gave this sentence?
A learner in a village in the state of Jharkhand knows her mother tongue and Hindi, the language of home and in her neighbourhood. She learns English in school. Which of the languages come under language acquisition and which of the languages come under language learning? I. Mother tongue and Hindi come under language acquisition II. English comes under language learning III. Hindi comes under language learning IV. All the three languages come under language acquisition
Which of the following statements are not correct regarding Triwartha's climate classification in Maharashtra? a) Konkan region comes under 'Am' type of climate. b) The Vidarbha region comes under 'Bs' type of climate. c) The Nashik - Solapur region comes under 'Aw' type of climate.
In an examination, two types of questions are asked: one mark questions and two marks questions. For each wrong answer, of one mark question, the deduction is 1/4 of a mark and for each wrong answer, of two marks question, the deduction is 1/3 of a mark. Moreover, 1/2 of a mark is deducted for any unanswered question. The question paper has 10 one mark questions and 10 two marks questions. In the examination, students got all possible marks between 25 and 30 and every student had different marks. What would be the rank of a student, who scores a total of 27.5 marks?