What is true about most higher-grade metallic ores? (1 point)
O Most of them can be extracted without requiring drilling.
O They are usually found deep below Earth's surface-more than 1,000 ft underground.
O Most of them can be extracted using the placer method.
O They are usually found very close to Earth's surface-less than 1,000 ft underground.
1.) Directional drilling
2.)The are usually found deep below the earths surface more than 1000 feet in the ground.
3.) Holding
4.) Marketing
- Emily.... you'll get a 100%
Most of them can be extracted without requiring drilling.
EMILY is 100% right trust me
thanks emily
To determine which statement is true about most higher-grade metallic ores, we need to assess each option and eliminate the ones that are incorrect.
Option 1: Most of them can be extracted without requiring drilling.
This option is incorrect because most higher-grade metallic ores cannot be extracted without drilling. Extraction methods like mining and drilling are typically needed to access and extract metallic ores.
Option 2: They are usually found deep below Earth's surface—more than 1,000 ft underground.
This option is not entirely accurate. While some higher-grade metallic ores are found deep underground, it is not true for all of them. The depth at which metallic ores are located can vary depending on geological conditions and the specific type of ore.
Option 3: Most of them can be extracted using the placer method.
This option is also incorrect. The placer method of extracting ores involves separating minerals from sediments using water, gravity, and/or mechanical methods. However, this method is generally employed for extracting alluvial deposits, such as those found in rivers or streambeds, and is not commonly used for higher-grade metallic ores.
Option 4: They are usually found very close to Earth's surface—less than 1,000 ft underground.
Based on the information provided, this option appears to be the most accurate. While it may not apply to every single higher-grade metallic ore, many of them are found close to the Earth's surface, typically less than 1,000 ft underground. This proximity to the surface can make the extraction process more accessible and economical.
Therefore, the correct option is: They are usually found very close to Earth's surface—less than 1,000 ft underground.