Surface mining, which is also known as strip mining, is when soil and rock overlaying mineral deposit is removed. It can cause habitat destruction, air pollution from dust particles, soil erosion and pollution. Subsurface mining is removing deposits from the Earth by drilling underneath layers of rock and dirt. To keep the pathways clear, <span>mining companies have to pump out large amounts of water, which go into surface ecosystems. That disrupts the ecosystem by changing the pH conditions of soil and water sources. Placer mining is mining of stream bed deposits for minerals, a way of obtaining minerals and metal resources. Although, because it is small, causes less damage to the surrounding environment it still can disrupt river ecosystems with pollution and sediments.
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Answer: Gas giants are larger, have more moons, and are less dense. They also are outer planets. Terrestrial planets are more dense, have a rocky and hard surface, and less moons sometimes no moons. They are called the inner planets.
Answer:
Heterotrophs or consumers
Explanation:
This are organisms that cannot produce their own food. They rely on autotrophs ( plants or producers ) for food. Most of the times these are normally animals.
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The structures that are in the body are In a complex environment, animals learn from their responses to stimuli and events. Appropriate response to reward and punishment can promote survival, reproduction and increase evolutionary fitness.
Answer:
A or B
Explanation:
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