Hydrophobic coatings are not a type of smart fabric, but rather a type of surface treatment that makes a fabric resistant to water.

Thermochromism is the technology that allows clothing to change color or pattern in response to changes in temperature.

3D printing in fashion is typically more expensive than traditional manufacturing methods.

Wearable technology is the technology that uses sensors and actuators to create clothing that can respond to the wearer's movements.

Fast fashion is not a type of sustainable fashion, as it is characterized by the rapid production of large quantities of clothing at low cost, which often leads to environmental and social problems.

Photovoltaics is the technology that uses solar cells to generate electricity from sunlight.

Fossil fuels are not a type of renewable energy, as they are derived from the remains of ancient plants and animals and are finite in supply.

Bioconversion is the technology that uses bacteria to produce biofuels.

Natural gas is not a type of biofuel, as it is a fossil fuel.

Phytoremediation is the technology that uses plants to remove pollutants from the environment.

Oxygen is not a type of pollutant, as it is essential for life.

Biodegradation is the technology that uses microorganisms to break down organic matter into simpler compounds.

Nitrogen is not a type of greenhouse gas, as it does not trap heat in the atmosphere.

Wind energy is the technology that uses wind turbines to generate electricity.

Nuclear energy is not a type of renewable energy source, as it uses uranium, which is a finite resource.