Living Things in their Environment Quiz

The carbon cycle describes how carbon is exchanged between the atmosphere, plants, animals, and the soil. It is important for maintaining the balance of carbon in the environment and supporting life processes like photosynthesis and respiration.

Competition occurs when organisms or species compete for the same resources (like food, water, and space). This can limit the population size of a species and affect its survival and reproduction.

A food chain is a linear sequence of organisms through which energy and nutrients pass, while a food web consists of interconnected food chains, showing the complex feeding relationships in an ecosystem.

Decomposers break down dead organisms, releasing nitrogen compounds into the soil, which can then be used by plants or converted into other forms by bacteria.

Adaptation refers to the process by which a species becomes better suited to its environment through changes in its structure, behaviour, or physiology over time.

The main greenhouse gases are carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), and water vapour.

Conservation is the protection and management of biodiversity, ecosystems, and natural resources. It is important to preserve species, maintain ecological balance, and prevent species extinction.

Global warming can lead to climate changes, such as increased temperatures and altered rainfall patterns, which affect habitats, species distribution, and biodiversity.

Biodiversity refers to the variety of life forms in an ecosystem, including the variety of species, genes, and ecosystems. It is important for ecosystem stability and resilience.

Human activities such as habitat destruction, overhunting, pollution, and climate change can lead to a loss of habitats, food sources, and survival conditions, driving species to extinction.