Answer:
Westward expansion meant that the US acquired ever increasing amounts of land, and needed people, farmers, to settle there so it could maintained without a huge military presence. This led to massive immigration in the second half of the 19th century, as mostly Europeans came here seeking to finally have their own land.
It also added vast resources to the United States, both in terms of potential agricultural production and things like gold, silver and timber.
It stimulated the construction of the Transcontinental Railroad, and added new states to the country.
It further aggravated the divide between north and south, and accelerated the onset of the Civil War.
Explanation:
Many impacts can be brought by global warming, here I would introduce two impact each on the aspect on ecosystem and agriculture.
On ecosystem:
1. Shift in distribution of plants:
The changes in climate brought by global warming will alter the natural distribution limits for vegetation. For example, forests are moving north into the ;and that was once Arctic tundra, while the growing season increased in northern high latitudes.
2. Extinction or endangerment of species
Species may not be able to cope with climate change unlike human, hence intolerance of the increasing temperature may led to the extinction of spices. For example, coral reef cannot survive under temperature over 30 degree Celsius hence facing the danger of extinction.
On agriculture:
3.Farm production lowered
A warmer climate would lead to a loss of soil moisture hence increasing the erosion rate, and the dry soil will lower the land productivity as crops cannot grow on these barren land, especially water thirsty crops such as rice.
4.Farm production destroyed
Pests may become more active given the shorter and warmer winter, while floods may be present more often given the rapidly rising sea level and the instability of the climate.
Hope it helps!
Answer:
Tidal currents
Explanation:
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Answer:
correct answer is option C
Explanation:
Option a cannot be correct since when three is technological stability in the industry environmental uncertainty will remain constant.
Option b cannot be correct since when industry the industry is at an equilibrium state than environmental uncertainty will not be affected.
Option c is correct since environmental complexity affect the environmental uncertainty when environmental complexity is high than environmental uncertainty will be high and when environmental complexity is low than environmental uncertainty will be low.
option d cannot be correct since environmental uncertainty is most likely to be high when environmental change is extensive.
Answer:
Drought can also affect people's health and safety. Examples of drought impact on society include anxiety or depression about economic losses,conflicts
Explanation:
When there is not enough water ,reduced incomes,fewer recreational activities,higher incidents of heat stroke and even a loss of life
