The ability of soil to tolerate significant changes in pH value is called?
(A) C.E.C.
(B) Mutual resistance (buffer)
(C) Alkaline saturation percentage
(D) Anion exchange capacity
In the laboratory, the pH of the soil solution is usually measured with a glass electrode. The soil sample is prepared with either water or a dilute salt solution, as the electrode measures only the acidity in the solution rather than the H+ ions present on the soil surface.
When a peacock eats a snake, the snake eats insects and the insect eats plants, then what will the peacock be called?
(A) primary consumer
(B) primary decomposers
(C) final decomposition
(D) the top of the food pyramid
In the given food chain, producers will be the green plants. Insects will be considered as primary consumers, snakes will be secondary consumers and peacock at last will be considered as tertiary consumer. So, peacock will be at the apex of the food pyramid as it is the ultimate or end consumer.
What is the correct sequence of plants in a hydrosphere?
(A) Walut-Lantana-Serpes-Pistia-Hydrilla-Valvox
(B) Valvox – Hydrilla – Pistia – Serpus – Lantana – Oak
(C) Pistia Valvox Serpus Hydrilla – Acorn Latana
(D) Oak – Lantana Valvox Hydrilla – Pistia – Serpus
Sequence of communities during hydrarch succession are as follows: Phytoplankton stage (Volvox) → submerged plant stage (Hydrilla) → submerged free floating plant stage (Pistia) →reed-swamp stage (Scirpus) → marsh-meadow stage (Lantana) → woodland stage → climax forest (Oak).
Who provides the ranking of the 'Global Gender Gap Index for the countries of the world?
(A) World Economic Forum
(B) UN Human Rights Council
(C) UN Woman
(D) World Health Organization
The correct answer is the World Economic Forum. Global Gender Gap Index: It is released by World Economic Forum which is an annual report.
From the ecological point of view, which one is more important as having good connectivity between the Eastern Ghats and the Western Ghats?
(A) Satyamangalam Tiger Reserve Area (Satyamangalam Tiger Reserve) ✔
(B) Nallamala Forest
(C) Nagarhole National Park
(D) Seshachalam Biosphere Reserve
The correct answer is option 1, i.e Sathyamangalam Tiger Reserve.
Under whom has the Genetic Engineering Approval Committee been constituted?
(A) Food Safety and Standards Act, 2006
(B) Geographical Indications of Goods (Registration and Protection) Act (Geographical Indications of Goods (Registration and Protection Act, 1999)
(C) Environment (Protection) Act, 1986
(D) Wild Life (Protection) Act, 1972
It was formed as the Genetic Engineering Approval Committee and was renamed to its current name in 2010. It functions under the Ministry of Environment, Forests & Climate Change.
Select from the following a group of eatables each member of which is rich In Iron.
(A) Jaggery, Amla, Tomato
(B) Amla, Spinach, Jaggery
(C) Amla, Cabbage, Tomato
(D) Cabbage, Amla, Spinach
So, Amla, spinach and jaggery are a group of eatables each member of which is rich in iron.
Consider the following functions for plants:
A. To give support to the plant
B. To provide humus
C. To store food
D. To absorb water and minerals
The functions of roots are
(A) A and B only
(B) C and D only
(C) B , C and D
(D) A , C and D
Explanation: Roots are the underground structures that help in the absorption of water and minerals, provide a proper anchorage to the plant parts, store reserve food material (Carrot, Radish), and synthesize PGR (plant growth regulators). Sometimes roots get modified to perform different functions like Storage of food, respiration, climbing, etc. These types of roots are called modified roots. Examples - prop root of the Banyan tree for providing support, Pneumatophores of Rhizophora, and Mangrove plants for respiration. So, these statements are correct. A. To give support to the plant. C. To store food. D. To absorb water and minerals.
Where in India is the combination of mangrove forest, evergreen forest, and deciduous forest?
(A) North Coastal Andhra Pradesh
(B) South-West Bengal
(C) Southern Saurashtra
(D) Andaman and Nicobar Islands
The Andaman and Nicobar Islands have a combination of mangrove forest, evergreen forest, and deciduous forest, making it a unique region of India with diverse flora and fauna.
What is called an 'Ecosystem'?
(A) A community of organisms interacting with each other.
(B) That part of the earth which is inhabited by living organisms.
(C) The community of organisms as well as the environment in which they live.
(D) flora and fauna of a geographical area.
An ecosystem is a community of living organisms (plants, animals and microbes) in a particular area. The term `eco' refers to a part of the world and `system' refers to the co-ordinating units. An ecosystem is a community of organisms and their physical environment interacting together.
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