Answer:
The Agricultural Revolution gave Britain at the time the most productive agriculture in Europe, with 19th-century yields as much as 80% higher than the Continental average. Even as late as 1900, British yields were rivaled only by Denmark, the Netherlands, and Belgium.
The Industrial Revolution was a changing point for many aspects of human life and the overall standard of living. Agriculture changed as well during this time as technology, such as the seed drill, the Dutch plough, was able to increase human productivity and led there to be higher outputs of food (Johnson).
Explanation:
1. Answer;
They evolved separately as they moved north and became two separate species.
Explanation;
The greenish warblers weren't geographically isolated, but they migrated around the Tibetan Plateau, evolving separately until they were no longer able to interbreed when both species (East and West) contacted in Siberia.
Greenish warblers were thought to have evolved from a single ancestral population that gradually diverged into two new species as it expanded northwards around the Tibetan plateau.
2. Answer;
- Their plumage patterns.
- Genetics and history
Explanation;
West Siberian greenish warblers (P. t. viridanus) and east Siberian greenish warblers (P. t. plumbeitarsus) differ subtly in their plumage patterns, most notably in their wing bars, which are used in communication. While viridanus has a single wing bar, plumbeitarsus has two. Around the southern side of the ring, plumage patterns change gradually.
Additionally, the two northern forms viridanus and plumbeitarsus are highly distinct genetically, but there is a gradient in genetic characteristics through the southern ring of populations. The greenish warblers were once confined to the southern portion of their range and then expanded northward along two pathways, evolving differences as they moved north. When the two expanding fronts met in central Siberia, they were different enough that they do not interbreed.
The correct answer is C. The battle of New Orleans enabled Americans to win generous terms in the treaty of Ghent.
The Battle of New Orleans was important because it was the last big battle of the War of 1812. American forced repelled the British army and won a decisive victory. This gave the US a good position during the Treaty sign and Britain had to lose some terms.
Answer:
Explanation:
The Los Angeles flood of 1938 was one of the largest floods in the history of Los Angeles, Orange, and Riverside Counties in southern California. The flood was caused by two Pacific storms that swept across the Los Angeles Basin in February-March 1938 and generated almost one year's worth of precipitation in just a few days. Between 113–115 people were killed by the flooding.[1] The Los Angeles, San Gabriel and Santa Ana Rivers burst their banks, inundating much of the coastal plain, the San Fernando and San Gabriel Valleys, and the Inland Empire. Flood control structures spared parts of Los Angeles County from destruction, while Orange and Riverside Counties experienced more damage.[1]
The flood of 1938 is considered a 50-year flood.[2] It caused $78 million of damage ($1.42 billion in 2019 dollars),[2] making it one of the costliest natural disasters in Los Angeles' history.[3] In response to the floods, the U.S. Army Corps of Engineers and other agencies began to channelize local streams in concrete, and built many new flood control dams and debris basins. These works have been instrumental in protecting Southern California from subsequent flooding events, such as in 1969 and 2005, which both had a larger volume than the 1938 flood.[3]
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