Environment & Ecology - MOST IMPORTANT RRB Group D Previous Year Questions
Practice real questions from previous year exams of RRB Group D.
What is meant by a self-sustaining ecosystem?
Which of the following is an artificial ecosystem, which is man-made?
Some characteristic features of autotrophs are given below. Which of the given statements is incorrect regarding autotrophs?
Arrange the following according to the food chain. A. Frog; B. Eagle; C. Paddy; D. Snake; E. Grasshopper
What is the process of accumulation of chemicals in higher trophic levels called?
Which of the following is an abiotic component of the ecosystem?
In what form do autotrophs store their food?
Which of the following is a heterotrophic organism?
Which of the following statements is incorrect regarding the flow of energy between different components of the environment?
Which of the following statements represents an interaction between an abiotic component and a biotic component in an ecosystem?
The flow of energy through different trophic levels in an ecosystem ________.
Which of these wastes cannot be decomposed by bacteria or other saprophytes?
Small carnivores or secondary consumers come at the ________ trophic level.
Which of the following groups of organisms is helpful in keeping the environment clean?
Which of the following is not required for autotrophic nutrition?
Which of the following statements is correct about non-biodegradable substances?
________ is the region of the Earth where living organisms can be found or where their life can be sustained.
From the organisms given below, select the apex predator.
Different parts of plants, vegetation, and organic waste are called ________.
Which of the following is the largest Biosphere Reserve in India in terms of geographical area?