1.timberline- timberline is the elevation above which trees cannot grow
2.chinook- this is a warm dry wind in the late winter and early spring
3.prairie- these are naturally treeless expanses of grasses
4.supercell- these are violent spring and summer thunderstorms
5.hurricane- these are ocean storms hundreds of miles wide.
6.blizzard- these are heavy snow blowing storms with high winds.

answer all questions in complete sentences and detail.
1. how tall can some of the grasses grow in the prairies of the great plains?
some of the grasses can grow from 6-12 feet.
2. how might the conditions that caused the 1930s dust bowl disaster have been avoided?

3. how do hurricanes and tornadoes differ?

4. study the maps on pages 122. identify the three largest climate regions in north america.

5. describe an environmental event that caused a major human migration event in the region.

Question

1.timberline- timberline is the elevation above which trees cannot grow
2.chinook- this is a warm dry wind in the late winter and early spring
3.prairie- these are naturally treeless expanses of grasses
4.supercell- these are violent spring and summer thunderstorms
5.hurricane- these are ocean storms hundreds of miles wide.
6.blizzard- these are heavy snow blowing storms with high winds.

answer all questions in complete sentences and detail.
1. how tall can some of the grasses grow in the prairies of the great plains?
some of the grasses can grow from 6-12 feet.
2. how might the conditions that caused the 1930s dust bowl disaster have been avoided?

3. how do hurricanes and tornadoes differ?

4. study the maps on pages 122. identify the three largest climate regions in north america.

5. describe an environmental event that caused a major human migration event in the region.

Accepted Answer

### Question 2:
# Brief Explanations:
The 1930s Dust Bowl was caused by over - plowing (removing native grasses that held soil), drought, and poor farming practices. To avoid it, farmers could have used crop rotation (to maintain soil fertility), planted wind - breaking trees or shrubs (to reduce wind erosion), practiced contour plowing (to prevent water runoff and soil erosion), and left some native grasses unplowed (to hold the soil in place). Also, better land management policies from the government, like regulating the amount of land that could be plowed in vulnerable areas, could have helped.
# Answer:
The conditions that caused the 1930s Dust Bowl disaster could have been avoided through several measures. First, farmers should have avoided over - plowing the land. The native prairie grasses had deep roots that held the soil together, and when they were plowed under for large - scale wheat farming, the soil became more vulnerable to erosion. Implementing crop rotation would have helped maintain soil fertility and structure, as different crops have different nutrient requirements and root systems that can help preserve the soil. Planting windbreaks, such as rows of trees or shrubs, would have reduced the wind speed across the fields, thereby decreasing wind - driven soil erosion. Contour plowing, where farmers plow along the contours of the land rather than up and down slopes, would have prevented water from running down the slopes and carrying away the topsoil. Additionally, the government could have implemented land - use regulations to limit the amount of marginal land (land with poor soil or in dry areas) that was plowed for farming, especially during periods of drought. By combining these agricultural practices and policy - level interventions, the excessive soil erosion and the resulting Dust Bowl conditions could have been mitigated.

### Question 3:
# Brief Explanations:
Hurricanes and tornadoes differ in several aspects. Hurricanes form over warm ocean waters, are hundreds of miles wide, and have wind speeds typically from 74 - 200+ mph. They last for days to weeks. Tornadoes form over land (usually from thunderstorms), are much smaller (usually a few hundred yards wide), have wind speeds from 65 - 300+ mph, and last for minutes to an hour or so. Also, hurricanes bring storm surges (rising ocean levels) and heavy rain over large areas, while tornadoes are more focused on destructive winds in a narrow path.
# Answer:
Hurricanes and tornadoes differ in multiple ways. Hurricanes originate over warm ocean waters, typically in tropical or subtropical regions. They are extremely large, often hundreds of miles in diameter, and can last for several days to even weeks as they move across the ocean and sometimes onto land. Their wind speeds generally range from 74 miles per hour (mph) for a Category 1 hurricane up to over 200 mph for the most intense hurricanes. In addition to strong winds, hurricanes bring heavy rainfall over a broad area and can cause storm surges, which are abnormal rises in sea level that can flood coastal regions.

Tornadoes, on the other hand, form over land, usually from severe thunderstorms, particularly supercell thunderstorms. They are much smaller in size, typically only a few hundred yards in diameter, although some can be larger. Tornadoes are short - lived, usually lasting from a few minutes to an hour or so. Their wind speeds can range from around 65 mph to over 300 mph. Tornadoes are characterized by a narrow, rotating column of air that extends from a thunderstorm to the ground, and they cause destruction along a relatively narrow path compared to hurricanes.

### Question 4:
# Brief Explanations:
The three largest climate regions in North America are the Continental climate (with hot summers and cold winters, found in the interior like the Great Plains), the Marine West Coast climate (mild, wet winters and cool, foggy summers, along the Pacific Northwest), and the Humid Subtropical climate (hot, humid summers and mild winters, in the southeastern US). (Note: This is based on typical climate region breakdowns for North America. If the map shows different, but these are common large ones.)
# Answer:
The three largest climate regions in North America are as follows. The Continental climate region is one of the largest. It is found in the interior of the continent, such as the Great Plains. This climate has hot summers, with temperatures often reaching into the 80s and 90s (°F), and cold winters, with temperatures frequently dropping below freezing. Precipitation is relatively moderate and is often concentrated in the summer months.

The Marine West Coast climate region is another large one, located along the Pacific Northwest coast (from northern California up through Oregon, Washington, and into southern Alaska). This climate is characterized by mild, wet winters, with temperatures rarely dropping below freezing, and cool, foggy summers. It receives a significant amount of rainfall throughout the year, which supports lush forests.

The Humid Subtropical climate region is the third large region, found in the southeastern United States. It has hot, humid summers, with high temperatures and high humidity levels, and mild winters, with temperatures usually staying above freezing. This region experiences a fair amount of rainfall, including summer thunderstorms and often receives precipitation from tropical systems as well.

### Question 5:
# Brief Explanations:
The Dust Bowl of the 1930s caused major human migration. The environmental event was severe drought and massive soil erosion (Dust Bowl conditions) in the Great Plains. Farmers and their families, facing crop failures, dust storms that destroyed their livelihoods, and economic hardship, migrated westward, especially to California, in search of jobs and better living conditions. This migration is well - documented, with many families (like the Joads in "The Grapes of Wrath") leaving their homes in Oklahoma, Texas, Kansas, etc., and traveling to California hoping for agricultural work.
# Answer:
The Dust Bowl of the 1930s was an environmental event that caused a major human migration in North America. During the 1930s, the Great Plains region (including parts of Oklahoma, Texas, Kansas, Colorado, and New Mexico) experienced severe drought, combined with poor farming practices that led to massive soil erosion. The result was the Dust Bowl, where huge dust storms (black blizzards) swept across the region, destroying crops, burying farmsteads, and making the land unproductive.

Farmers and their families, who relied on agriculture for their livelihoods, found themselves with no crops to sell and no way to support themselves. Facing economic ruin and harsh living conditions, hundreds of thousands of these "Okies" (a term used for migrants from Oklahoma, though it was applied more broadly to migrants from the Dust Bowl region) migrated westward, primarily to California. They hoped to find jobs in California's agricultural industry, as the state had a growing demand for farm labor. This migration was significant in scale, with families packing their belongings into old cars and traveling along Route 66, facing many hardships along the way, including discrimination, poverty, and difficult living conditions in migrant camps. The Dust Bowl migration had a lasting impact on the demographics and culture of California and the western United States.

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