Barrons AP Environmental Science

Figure 4.13 Percent of total Earth land surface ...

Figure 4.14 Distribution of biomes by precipitation and temperature DESERTS Deserts are defined in terms of the ...

Figure 4.15 Desert climatograph TIP According to the 2nd Law of Thermodynamics, as energy flows through systems, ...

Figure 4.16 Desert food web Desert plants are spaced apart due to limiting factors and consist primarily of s ...

roots to collect water after short rainfalls. Sharp spines on cacti reflect sunlight, create shade, and d ...

the ground to restore soil fertility. – Only use off-road vehicles on designated trails and roadways. – Dig ...

Figure 4.17 Tropical forest climatograph The temperature is warm to hot and varies little throughout ...

Figure 4.18 Tropical rainforest food web Major Environmental Threats ■ Human intrusion into natural areas, ...

■ Cutting trees for timber and pulp (used for manufacturing paper) and clearing land for agriculture. ■ Intro ...

Figure 4.19 Temperate deciduous forest climatograph Temperature varies from –20°F to 85°F (–30°C to 30°C). ...

Figure 4.20 Temperate deciduous forest food web Major Environmental Threats ■ Acid rain caused by industri ...

■ Unsustainable forestry practices. ■ Strip mining. ■ Spread of invasive, nonnative species that compete for space ...

Figure 4.21 Temperate coniferous forest climatograph Structurally, these forests are rather simple, ge ...

Figure 4.22 Boreal forest food web Major Environmental Threats ■ Clear-cutting driven by agricultural interest ...

■ Global warming and associated changes in precipitation patterns, causing climatic zones to shift toward the ...

TAIGA The taiga represents the largest terrestrial biome. The taiga is found in northern Eurasia and North Amer ...

Figure 4.24 Northern taiga climatograph Seasons are divided into short, moist, and moderately warm summers and ...

Figure 4.25 Southern taiga (boreal forest) food web ...

Figure 4.26 Northern taiga food web Major Environmental Threats ■ Increase in wildlife in some areas ...

SOLUTIONS – Increase alternative energy options to minimize global warming. – Increase the number of protected ...