Chapter 30: Problem 3

Explain why traveling up a mountain in the Northern Hemisphere takes you through biomes similar to those you would encounter by traveling north for a long distance

Short Answer

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Traveling up a mountain in the Northern Hemisphere takes you through biomes similar to those encountered when traveling north for a long distance because both scenarios involve a decrease in temperature due to changes in altitude or latitude. This drop in temperature leads to changes in climate and the distribution of biomes. As you move up a mountain or northward, you will observe changes in ecosystems, from forests to tundras, as climatic conditions change.

Step by step solution

Understand Biomes

Biomes are large naturally occurring communities of flora and fauna that are adapted to the prevailing climate and environmental conditions in a particular area. There are several kinds of biomes, such as forests, tundras, grasslands, and deserts. Biomes are primarily influenced by factors such as temperature, altitude, and latitude.

Temperature and Latitude

The temperature on Earth varies with latitude. As we move further north from the equator in the Northern Hemisphere, the temperature generally decreases. Lower temperatures lead to changes in climate and, therefore, changes in the biomes that we encounter as we travel northward.

Temperature and Altitude

Just like how temperature decreases as we move further away from the equator, temperature also decreases as we move up in altitude. The higher we go, the cooler it becomes, because the atmosphere is thinner, and there is less solar radiation being absorbed. This temperature change with altitude also affects the climate and leads to changes in the biomes as we ascend a mountain.

Biome Distribution and Altitude

As we go up a mountain, the climate changes due to the decrease in temperature and changes in precipitation patterns. Thus, different biomes develop at different altitudes on the mountain slope. Generally, the base of a mountain would have a biome similar to that of surrounding lowlands, while the progressively higher elevations would have cooler, moist conditions leading to different types of forest ecosystems. Even higher up, the climate transitions from forest to tundra ecosystem and, finally, to a snow-covered peak.

Biome Distribution and Latitude

As we travel northward in the Northern Hemisphere, we also encounter various biomes due to changing temperature and precipitation patterns. Near the equator, we find tropical rainforests, which gradually change into temperate forests as we move away from the equator. Further north, we encounter boreal forests or taiga, which transition into the cold and treeless tundra biome. Finally, at the highest latitudes, we find the polar ice caps.

Conclusion

Traveling up a mountain in the Northern Hemisphere takes you through similar biomes to those you would encounter if you were to travel north for a long distance because both scenarios involve a decrease in temperature. The drop in temperature leads to changes in climate and, consequently, the distribution of biomes. As a result, in both cases, you will observe changes in ecosystems from forests to tundras as you travel through different climatic conditions brought on by altitude or latitude.

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Explain why traveling up a mountain in the Northern Hemisphere takes you through biomes similar to those you would encounter by traveling north for a long distance

Short Answer

Step by step solution

Understand Biomes

Temperature and Latitude

Temperature and Altitude

Biome Distribution and Altitude

Biome Distribution and Latitude

Conclusion

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