Answer:
Mutations, gene flow, and sexual reproduction are all major causes of variation. By altering the genes of individuals in a population, DNA mutation causes genetic variation. As new individuals with different gene combinations migrate into a population, they cause genetic variation.
Explanation:
B)
Answer:
Explanation:
Latitude is basically the measurement of distance on a map of the earth's surface location of north or south of the Equator which is expressed in angular measurements from 0 degrees at the Equator to 90 degrees (i.e 90° North or 90° South). Latitudes are used interwoven with longitude.
Latitude can impact our lives in various ways:
Help in pinpointing the exact location of each point on the earth which allows human beings to know where we are.
Helps in determining the climatic situation of a region due to their geographic location
Extremely important for/in GPS
Helps in determining times (zone)and dates
Extremely useful for many fields that deal with the earth and outer space to some extent such as astronomy in their astronomical observations, geologist, etc, and sailors to navigate.
Draws conclusions based on results
Answer:
The answer is Option B: plate tectonics.
Explanation:
Plate tectonics is a theory about the structure of the earth's crust. In plate tectonics, the continents are viewed as a part of a system of rigid lithospheric plates which move slowly over the underlying mantle of the Earth. The model for plate tectonics builds on the concept of continental drift, which is an idea developed during the first decades of the 20th century. In continental drift theory, all the world's continents were once joined into a land mass that geologists have called Pangea during the late Paleozoic and early Mesozoic eras. It began to break up about 175 million years ago. In the beginning in the late Triassic, the continents began to break up with Laurasia comprising with what is North America and Eurasia and Gondwanaland which was South America and Africa, India, Arabia, Antarctica, and Australia. The shift in plates and their movement create mountain ranges and continents form and move to different latitudes that change the climate as these land masses moved.
False. The most freshwater is found in ice caps and glaciers.