Explain the formation of carbon dioxide, the main causes of habitat destruction, and the law protecting Papua New Guinea's national animals.

Here are the answers to your questions:

QUESTION 1
Carbon dioxide ($CO_2$) is formed through several processes:

• Respiration: Living organisms release $CO_2$ as a byproduct of breaking down food for energy.
• Combustion: Burning of carbon-containing materials like fossil fuels (coal, oil, natural gas) and wood releases $CO_2$.
• Decomposition: Microorganisms break down dead organic matter, releasing $CO_2$ into the atmosphere.

QUESTION 2
The three main causes of habitat destruction are:

• (i) Deforestation (clearing forests for agriculture, logging, or development)
• (ii) Urbanization and infrastructure development (building cities, roads, and other human structures)
• (iii) Pollution (contamination of air, water, and soil, making habitats unsuitable)

QUESTION 3
The law that the government of Papua New Guinea has made in order to protect its National Animals from dying out is the Fauna (Protection and Control) Act 1966.