In the earth’s mantle , large amounts of heat are transferred by convection currents, which would cause the heat from the core and the mantle itself causes convection currents in the mantle . The hot rocks eventually will cool and sink back through the mantle which will make the cycle repeat which would be the cycle of rising and sinking .
Australia and Antarctica are the two countinent completely surrounded by water.
Answer:
Explanation:
a. There are gain to reproduce, if increase the number of seals, it's will increase the number of whales, because they eats the seals and become strongest to reproduce. If the seal’s birth rate goes up, the whales will benefit more. If the whale’s death rate increases, the seal’s will benefit more than the whales.
b. The more the whales capture, the fewer seals there will be. Over time, this will negatively affect both the seals and the whales.
c. Limiting on the size of population, such as temperature, light and soil. (abiotic factors), or biotic factors, such as competition, predation, availability of food, or ability to survive.
The government of Canada is a parliamentary democracy and a constitutional monarchy, meaning it's government is set up in a parliamentary style with a Prime Minister and the Queen of the United Kingdom is the head of the State. In 1982, the Canada Act was passed which ended the necessity for the country to request certain types of amendments to the Constitution to be completed solely through the permission of the British government.
Answer:
The population pyramid is a graphical depiction of age and sex structure of population in a certain region ( usually state).
Explanation:
Pyramid is not the most adequate term since it`s two-dimensional and has a shape of a triangle. Left side of this triangle represents males and the right side females. This pyramid is presented with a set of bars which are pilled one on another. The bars are longer on the base and shorter on the top, hence the shape of a triangle. Each bar represents a certain age range. The lowest bar represents the range from 0 to 4 years. The one above from 5 to 9 years, the next from 10 to 14 years and so on. The length of a bar represents the number or the percentage of that range in the given population.
The pyramid population is regarded as one of the best ways to visualize age structure in both sexes.