Class 11 Sociology Part 2 Chapter 3 MCQ

Agriculture contributes to variety larger of environmental issues that cause environmental degradation including: global climate change, deforestation, biodiversity loss, dead zones, recombinant DNA technology, irrigation problems, pollutants, soil degradation, and waste.

Energy flow is that the flow of energy through living things within an ecosystem. All living organisms are often organized into producers and consumers, and people producers and consumers can further be organized into a organic phenomenon. Each of the degree within the organic phenomenon may be a trophic level.

The species, which are found primarily or most abundantly or spend most of their time in ecotone are called edge species.

The most environmentally friendly practice is Organic farming. This farming represents a technique entailing growing plants and raising animals in a very natural environment.

When fossil fuels are burned, they release Sulpher and nitrogen oxides into the atmosphere, which contribute to the formation of smog and air pollution. The foremost common nitrogen-related compounds emitted into the air by human activities are collectively mentioned as nitrogen oxides.

The word springs from the french word environer, which suggests to surround, enclose or encircle. The environment may be defined as surroundings or conditions during which living organisms like plants, animals, and humans live.

Mass of living matter at a trophic level in a vicinity at any time is named standing crop. It indicates the entire biomass of an ecosystem. It’s expressed as biomass. it’s the overall dried biomass during a given environment.

An herbivore is an organism that feeds totally on plants. Herbivores aim size from tiny insects like aphids to large, lumbering elephants.

Since all the above options are tormented by human activities. The above options don’t seem to be influenced by human activities. Thus by considering all the above-given options, the foremost appropriate answer is option D. That is, none of the choices is influenced by human activities.

A population could be a group of living organisms of the identical kind living within the same place at the identical time. All of the plant and animal populations living during a habitat interact and form a community.

The sedimentary cycles just like the phosphorus cycle, however have their nutrient reserves within the soil, rocks and minerals;elements are released from the rock and deposited within the sea. The phosphorus cycle doesn’t have a gaseous phase.

Endemic species are plants and animals that exist only in one geographical area. Species will be endemic to large or small areas of the earth: some are endemic to a specific continent, some to a part of a continent, et al to one island.

Pyramid of energy is that the only pyramid that may never be inverted and is usually upright. this is often because some amount of energy within the style of heat is usually lost to the environment at every trophic level of the organic phenomenon.

In forests, one tree can support an oversized number of birds thus base showing producers in an exceedingly pyramid of number are going to be narrower than the subsequent slab showing primary consumers. Hence a upright pyramid of number isn’t formed during a forest ecosystem.

The word ‘environment’ within the English has its origins within the French word, ‘environ’. It means ‘surrounded’ or ‘encircled’.

During photosynthesis, plants absorb carbonic acid gas (CO₂) and water (H₂O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the greenhouse gas is reduced, meaning it gains electrons. This transforms the water into oxygen and therefore the dioxide into glucose.