ecology & bio environment geography section 2 MCQ Questions & Answers Detailed Explanation

Answer: (b)

The fur of the animals living in colder regions traps the air and keeps them warm.

Answer: (a)

The Montreal Protocol on Substances that Deplete the Ozone Layer (a protocol to the Vienna Convention for the Protection of the Ozone Layer) is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances believed to be responsible for ozone depletion.

The treaty was opened for signature on September 16, 1987, and entered into force on January 1, 1989, followed by the first meeting in Helsinki, May 1989.

Answer: (a)

An artificial ecosystem is one created by people. You can create an artificial ecosystem in an aquarium or terrarium. Nathaniel Bagshaw Ward is credited as the inventor of the terrarium, which he accidently created in 1829.

Answer: (c)

The tropical and subtropical dry broadleaf forest biome, also known as tropical dry forest, is located at tropical and subtropical latitudes. Deciduous trees predominate in most of these forests, and during the drought, a leafless period occurs, which varies with species type.

Teak and Sal, along with mango, bamboo, and rosewood, belong to the moist deciduous forests which shed their leaves in the dry season.

Answer: (b)

Ecosystems contain essentially two kinds of commodities: matter (nutrients) and energy. Material nutrients cycle through the biotic and abiotic parts of the ecosystem, available for repeated use by the organisms in the ecosystem's community.

However, energy enters an ecosystem by being used to convert low-energy carbon dioxide into high-energy carbohydrate, then passes through one or more of the organisms of the community, and is then lost to the ecosystem.

Eventually, all of the energy that enters the ecosystem is lost in the form of heat.

Answer: (c)

The biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere.

The biosphere is made up of the parts of Earth where life exists. It is the worldwide sum of all ecosystems.