Yes, everything made on Earth is composed of materials that originate from Earth. The Earth is composed of a wide variety of elements and compounds, and all the materials used by humans to create objects and structures ultimately come from these Earthly sources.
For example, building materials such as wood, concrete, and metals are derived from natural resources found on Earth. Wood comes from trees, which are grown on land, while concrete is made from a mixture of aggregates (sand, gravel) and cement, which is produced from limestone, clay, and other minerals. Metals like iron, aluminum, and copper are extracted from ores found within the Earth's crust.
Similarly, synthetic materials like plastics are typically derived from petroleum or natural gas, which are fossil fuels formed from ancient organic matter buried deep within the Earth's layers. These fossil fuels serve as feedstocks for the production of various polymers used in plastic manufacturing.
In summary, while humans transform raw materials through various manufacturing processes, the origins of these materials can be traced back to the Earth's resources.