Answer:
Explanation:
The principal exports are palm oil and palm kernels. Trading, local crafts, and wage labour also are important in the Igbo economy, and a high literacy rate has helped many Igbo to become civil servants and business entrepreneurs in the decades after Nigeria gained independence.
<span><span> A.</span><span>Since ancient times, people have used waterways for transportation.
</span></span><span> B. When natural waterways are too difficult to navigate, people sometimes dig canals to provide a better means of transportation.
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<span>D. Canals are man-made waterways that change the natural landscape to meet human needs.</span>
Answer:
When the Turks then threatened to invade the Byzantine Empire and take Constantinople, Byzantine Emperor Alexius I made a special appeal to Urban for help. This was not the first appeal of its kind, but it came at an important time for Urban. Wanting to reinforce the power of the papacy, Urban seized the opportunity to unite Christian Europe under him as he fought to take back the Holy Land from the Turks.
Explanation:
<span>They put barbed wire around their land.
They polluted water sources with animal waste.
They kept hundreds of cattle at one time.</span>
