As changes to the Earths climate occur, organisms within will be given the natural selection all animals are. Those being, die off and not adapt, or adapt “evolve” to the new climate and survive. An example is the bear, polar bears adapted to winter climates by having a white fur coat to blend in, while grizzlies have a brown coat to blend in with shrubbery or the soil.
Answer:
Quaternary period
Explanation:
The last Ice Age on Earth occurred during the Quaternary period. This Ice Age only ended around 10,000 years BC, so very recently. During this period, big portions of the Earth were under ice, with approximately half of North America, as well as half of Eurasia being covered in ice. The mountains around the globe too were covered in glaciers. Because there was so much water trapped in the ice sheets and glaciers, the sea levels were much lower, which opened up lot of land-bridges between the islands and continents, which turned out to be crucial for the human migrations around the globe.
Answer:
Option (C)
Explanation:
Charts and graphs are the most common features that are used in order to show and highlight data in a preferred and simple way. It helps in a clear understanding of any topic, as the charts are comprised of figures and graphs show the relationship between two things. It provides accurate and valuable information. These are also considered to be a simple, meaningful and attractive design and are widely used during the presentation of any topic.
These graphs and charts are made using different colors, and the number of colors are not fixed. It has a wide range of colors.
Thus, the correct answer is option (C).
Answer:
N₂
Explanation:
The primary greenhouse gases in the atmosphere are carbon dioxide, methane, nitrous oxide, water vapour and ozone. These gases allow sunlight to reach the Earth's surface unhindered. The sunlight heats the surface. The heat as infrared reradiated to the atmosphere, the greenhouse gases absorb the heat energy. They do not allow heat to escape back trapping' the gases in the lower atmosphere.
Nitrogen is an inert gas present in the atmosphere is about 78%.
Only some nitrogen-fixing bacteria such as Rhizobium which fixes atmospheric nitrogen into the soil.
Thus, N₂ (nitrogen) is not a greenhouse gas.
Hello!
The ridge of till is called "terminal moraine". Letter c). The terminal moraine is a type of moraine that mark the maximum advance point of the edge of a glacier.
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