Environmental Science MCQ Questions and answers | EVS MCQ

Largest reptile in the world Anaconda.

The Beej Bachao Movement also known as the Beej Bachao Andolan or BBA was started in Jardhargaon in Tehri Garhwal to conserve and promote indigenous seeds and agricultural practices. It has its roots in the Chipko Movement.

A dim, "watery" sun visible through a gray sheet-like cloud layer is often a good indication of Altostratus clouds.

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.

Diarrhoea is not created by noise pollution.

In grazer food chain the living plants are directly consumed. A simple food chain as shown in the figure given below, in which energy from the Sun, captured by plant photosynthesis, flows from trophic level to other trophic level via the food chain.

At the Autumn Equinox, approximately September 23, the sun sinks below the horizon, and the North Pole is in twilight until early October, after which it is in full darkness for the Winter.

Tropical deciduous trees shed their leaves in summers because the climate becomes hot and the leaves automatically become dry and shed off. Moreover they need to conserve water so that they can sustain in winters thus they shed their leaves.

Average total rainfall is 100 - 150 cm in chaparrals, located in Australia, South America and Africa.

Decomposers and scavengers are those which decomposes the waster organic matter and release energy back in the environment. Hence, they are also called as nature's cleaner. They are present in the apex of the pyramid. Thus, the correct answer is 'Decomposers and scavengers.