The answer would most likely be A.Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed. In contrast to underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels.
Surface mining began in the mid-sixteenth century[1] and is practiced throughout the world, although the majority of surface coal mining occurs in North America.[2] It gained popularity throughout the 20th century, and surface mines now produce most of the coal mined in the United States.[3]
In most forms of surface mining, heavy equipment, such as earthmovers, first remove the overburden. Next, huge machines, such as dragline excavators or Bucket wheel excavators, extract the mineral.
Answer:
krebs cycle
Explanation:
there there are two phases of respiration the first in the diagram above is glycolysis thus the next phase is the krebs cycle
Answer:
Due to different reproduction methods.
Explanation:
Organisms from eubacteria, plantae and animal kingdom are used different reproductive strategies which leads to genetic diversity. Bacteria use asexual reproduction which produces identical offspring while on the other hand, plants and animals use sexual reproduction that produces offspring that is different from plants which leads to variation in the organism so that's why we can say that different reproductive strategies is responsible for genetic diversity.
