Earth Features

What is the definition of 'streak' in mineral testing?

• The color of the powder left behind when a mineral is scraped across a surface.

• The hardness of a mineral measured on the Mohs scale.

• The luster or shine of a mineral's surface.

• The specific gravity of a mineral compared to water.

What is similar to a telescope?

• Microscope

• Binoculars

• Magnifying Glass

• Camera

What is the definition of 'cleavage' in minerals?

• The ability of a mineral to resist scratching.

• The tendency of a mineral to break along flat surfaces.

• The color of a mineral in powdered form.

• The way a mineral reflects light.

What is the purpose of a mineral kit?

• To learn about different minerals and their properties.

• To store minerals for future use.

• To display minerals in a museum.

• To collect minerals from various locations.

What is the longest river in the world?

• The Amazon River

• The Nile River

• The Yangtze River

• The Mississippi River

What is the definition of 'color' in minerals?

• Color is the appearance of a mineral, which can vary widely among different minerals.

• Color refers to the chemical composition of a mineral.

• Color is the texture and luster of a mineral.

• Color is the weight of a mineral.

What is the definition of 'luster' in minerals?

• Luster refers to the color of a mineral.

• Luster describes how light reflects off the surface of a mineral.

• Luster indicates the hardness of a mineral.

• Luster is the term for the mineral's crystal structure.

What is limestone?

• A type of igneous rock primarily made up of quartz.

• A type of sedimentary rock primarily made up of calcium carbonate.

• A type of metamorphic rock found in mountainous regions.

• A type of volcanic rock formed from lava.

What is the importance of natural resources like limestone?

• They are primarily used for decorative purposes.

• They are important for agriculture, construction, and various industrial processes.

• They are mainly used in the production of textiles.

• They have no significant economic value.

Why do farmers add limestone to soil?

• To increase soil acidity

• To improve the quality of the soil, which helps plants to grow better

• To reduce soil erosion

• To enhance the color of the soil