Vehicle emissions, particularly from diesel engines, are a major contributor to air pollution in urban areas.

Solar energy is a renewable energy source that harnesses the power of the sun to generate electricity.

Recycling is the process of converting waste materials into new materials and objects.

Agriculture, particularly the clearing of forests for farming and grazing, is a major cause of deforestation.

Filtration is the process of removing pollutants from water by passing it through a filter.

Sewage discharge, particularly untreated sewage, is a major contributor to water pollution.

Incineration is the process of burning waste to generate energy.

Burning fossil fuels, such as coal, oil, and natural gas, releases greenhouse gases into the atmosphere, contributing to climate change.

Conservation is the process of reducing the use of resources, such as energy, water, and materials.

Agriculture, particularly intensive farming practices, is a major cause of soil erosion.

Mitigation is the process of reducing the impact of human activities on the environment, such as reducing greenhouse gas emissions.

Habitat destruction, particularly deforestation, is a major cause of biodiversity loss.

Sustainability is the process of managing resources in a way that meets the needs of the present without compromising the ability of future generations to meet their own needs.

Agricultural activities, such as the use of fertilizers and pesticides, can contribute to air pollution in rural areas.

Efficiency is the process of reducing the amount of energy used to perform a task.