Any undesirable change in the physical, chemical or biological features of air, land and water is called

Question

Question

This question was previously asked in

RRB Pharmacist Exam Paper 2019

Answer 1

Correct Answer: Pollution

Rationale:

Pollution refers to any undesirable change or contamination in the physical, chemical, or biological characteristics of air, land, and water that can harm living organisms or the environment. These changes can negatively affect ecosystems, human health, and the natural processes of the Earth.
Pollution can result from various sources, including industrial activities, human waste, agricultural practices, and other human activities that release pollutants into the environment.

Explanation of Other Options:

Pollutants

Rationale: Pollutants are substances or factors that cause pollution. They can be physical, chemical, or biological substances that are introduced into the environment and result in adverse effects. While pollutants are the cause, pollution is the actual process or condition of being polluted.

Ecology

Rationale: Ecology is the branch of biology that studies the interactions among organisms and their environment. It is concerned with the relationships between living organisms, including humans, and their physical surroundings. It does not specifically refer to undesirable changes or pollution.

Ecosystem

Rationale: An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. It includes plants, animals, microorganisms, soil, water, and air. While an ecosystem can be affected by pollution, the term itself does not describe the undesirable changes caused by pollutants.

Conclusion:

Among the given options, pollution is the correct term to describe any undesirable change in the physical, chemical, or biological characteristics of air, land, and water. It encompasses various forms of environmental degradation caused by pollutants.
The other options—pollutants, ecology, and ecosystem—represent related concepts but do not specifically define the undesirable changes in the environment that constitute pollution.