The correct answer is - 1,180 km.
North America and Europe move away from one another, though on the other end of the plates, the Eurasian and the North American plates are actually merging. Since the rate of moving away is 2 cm per year, and the current distance is 1,184 km between North America and Europe, the distance between them 200,000 years ago was 1,180 km.
To get to the result we only need to multiply the number of years with the annual movement
2 x 200,000 = 400,000
Then divide the result with 100,000, as that is how much cm are in one km
400,000 / 100,000 = 4
And we get 4 km, in this case 4 km less, thus the distance between the two, 200,000 years ago, was 1,180 km.
Answer:
Water has equal H+ and OH- ions, making its pH 7, which is considered a neutral pH.
Answer: Chemical weathering changes the composition of a rock, while physical weathering does not.
Explanation: The definition of a chemical change is a change that cannot be reversed and is caused by a chemical reaction. In this case, a chemical change to a rock would change the composition of the rock while physical changes may change the appearance of the rock, but not the composition.
It is a complete set of an organisims gene so the aanswer would be B. the study of genomes and organisims
Your friend will talk about the definition of evolutionary medicine, and there by understanding the health and diseases
Explanation:
- Evolutionary medicine is the understanding the health and diseases using the evolutionary theory
- Evolutionary theory gives an idea of the heritable and morphological changes in the organism.
- Today, the field of research on evolutionary medicine is advanced to the molecular and psychological mechanism of health and diseases.
- Hence, your friend will talk about the evolutionary understanding of the health and diseases from the lens of the evolution of species. To create an understanding of the evolutionary medicines there need to ab understanding of the heath and diseases of previous ages.
