Answer: 1950s
Explanation: Data gathered by ocean graphic surveys conducted by many Nations legend discovery that a great mountain range and on the ocean floor virtually into good Earth. From noaa.gov
Answer:
D. a mutation
Explanation:
This would be called a mutation because it stated above neither of it's parents have it so say for humans both parents have 2 arms which is normal. They have a child and he/she only has one arm thus mutation.
It protects the Earth from becoming over heated, but with pollution, global warming has become more apparent because of the destruction of the ozone layer
Answer:
Pathogenic bacteria are bacteria that can cause disease. Although most bacteria are harmless or often beneficial, some are pathogenic, with the number of species estimated as fewer than a hundred that are seen to cause infectious diseases in humans
Explanation:
