B. Triton
C. Callisto
D. Ganymede
B. confucianism
C. Daoism
D. Shintoism​
genetic engineering
volcanic eruptions
the Panama Canal
plate tectonics
Answer:
Option (2)
Explanation:
Genetic engineering is defined as a process by which a DNA (or other molecules of nucleic acid) can be artificially operated, alter and recombined so that an organism can be modified. In addition to this, modification of gene and cloning can also be done. This a human-operated system.
Genetic engineering is directly based on the study of a DNA, which is present inside the body of an organism, so it is considered as a human system.
Hoover Dam and the Panama canal are both human-made structures. Plate tectonics is a geological process that leads to the eruption of volcanoes and is a natural process.
Thus, the correct answer is option (2).
The human systems among the given options are genetic engineering, the Panama Canal, and plate tectonics.
The human systems among the given options are genetic engineering, the Panama Canal, and plate tectonics.
Genetic engineering is the manipulation of an organism's genes to produce desired traits or outcomes.The Panama Canal is a human-made waterway that connects the Atlantic and Pacific Oceans, allowing for easier trade and transportation. Plate tectonics is the scientific theory that explains how Earth's lithosphere is divided into several large plates that move and interact with each other, which indirectly affects human life through earthquakes and volcanic activity.
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Answer:
TRUE
Explanation:
Rainwater is comprised of both oxygen and carbon dioxide which is essential for the growth of plants, and is acidic in nature. During the time of occurrence of rainfall, the rainwater gets mix up with the soil, and helps in releasing the essential micro-nutrients such as zinc, iron, copper into the soil and thereby enhances the growth, development and expansion of plants.
In addition to this, rainwater also helps in leaching the salt concentration downward into the deeper root zone, which obstructs the growth of plants.
Thus, the given statement is true.