<span>Since ages in a population pyramid are represented ranging from youngest at the bottom to oldest at the top, the two graphs aligned side by side typically give the appearance of a pyramid. This is because fewer people in a population live into old age. The BBC notes, however, that it is possible to distinguish different qualities in a population through variations from the standard pyramid shape. For example, an aging population with a low birth rate would look like an upside-down pyramid.</span>
Europe is not a typically dry place (unlike for exampe Mesopotamia) so it does not need rivers for irrigation.
Instead, rivers are needed more for transport - they have served as a means of communication and for the exchange of goods.
For example, Danube allowed a big-scale trade between the cities lying on it: Vienna, Budapest and Bratislava.
The correct answer is - temperate deciduous forest.
The temperate deciduous forests are forests that are found in the mid-latitudes. These trees in these forests shed their leafs during the late autumn, and grow them again in the spring. They exist in regions where there's four clearly defined seasons.
The canopies of these forests do not stop all the light, but instead, some of the light riches the surface, while in the colder period the light has no obstacle to reach the surface. The soil is deep and fertile, which is the result of the shedding of leafs in most part, and the vegetation is nicely diversified, where there's numerous plants occupying certain height of the forest. The animals are also relatively abundant, and they are well adapted to both very cold and very warm climates.
Answer: 4500 metres
Explanation:
Echo is a reflection of sound wave. It is the sound heard after it has been reflected off the surface of a wall or cliff.
Time = 6 seconds
Speed of sound in water = 1500m/s
distance =?
From the relationship ;
Speed = distance / time
Distance = speed * time
Distance = 1500 * 6 = 9000 metres
Distance here represents the total distance traveled by the pulse that is distance to the seafloor and back to the surface.
Therefore the depth of the water is given by;
Depth = distance / 2
Depth = 9000 / 2 = 4500metres.
