Natural Resources: Water, Rocks & Soil

Natural resources are materials found in nature that are useful to humans, such as water, rocks, and soil. Candy and balloons are manufactured products.

Rocks, specifically gemstones or minerals found within rocks, are commonly used to make jewelry.

Soil provides the medium for plants to grow, and its structure allows tree roots to anchor firmly into the ground.

Water provides buoyancy, which allows boats to float on its surface.

Hard rocks like flint or obsidian were historically shaped by humans into sharp arrowheads.

Soil erosion occurs when soil is washed away by water or blown away by wind.

Oceans, lakes, and streams are the primary natural bodies of water on Earth.

Ants build their colonies and tunnels within the soil.

Rocks, such as marble or granite, are durable materials that can be carved into statues and monuments.

Soil is commonly referred to as dirt or earth.

A hard, heavy rock can be used as an improvised tool to pound or hammer objects like nails.

Chalk is a type of limestone, which is a sedimentary rock.

Earthworms live in the soil, where they help aerate the ground and decompose organic matter.

Water is a liquid at room temperature and is the standard definition of something that is wet.

Soil is composed of a mixture of weathered rock particles, organic matter like leaves and twigs, and minerals. Water and rocks are distinct substances that do not contain this specific mixture of organic and inorganic debris.

Soil provides the necessary nutrients, water retention, and physical support required for plants to grow. Water alone is used in hydroponics, but soil is the standard medium for general plant growth.

Salt is a mineral that is often mined from rock deposits (rock salt or halite). While some salt is harvested from water, rocks are a primary source of mineral salt.

Water is the resource used for drinking and hydration. While the phrasing 'fresh drink' is slightly awkward, the intent is clearly about drinking water. Rocks and soil are not consumed as beverages.

Natural resources are materials and substances that occur in nature and are useful to humans. Option C correctly states this definition, despite having a minor grammatical error (people use vs. that people use).