<span>One of the first transformations was the shift from agricultural economy to one based on wages and the exchange of goods and services. The second transformation was urbanization. The cities grew as the jobs grew. The debate on slavery emerged as a giant issue. The issue on the rights of states did as well. The Second Great Awakening happened during this time. Westward expansion also occurred. A war on Mexico happened in 1846 to acquire Texas, California, and all land in between.</span>
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I did a bit of research, and basically its in the power of the goverment.
Explanation:
Answer:
1. Ecologists call this one-way flow of matter and energy from a producer to a primary, then to secondary, and perhaps to a tertiary consumer, a food chain. ... ~ Single food chains do not show all the feeding relationships in ecosystems. The food web shows all the organisms at each feeding level or trophic level.
2. Energy flows through an ecosystem in one direction: from producer to primary consumer to secondary consumer to higher consumers. A biomass pyramid provides a picture of the feeding and nergy relationships within a food web and the direction of the flow of energy.
Explanation:
3000 people died in World Trade Center buildings in New York; Pennsylvania air crash and in Pentagon all attacks were done by using hijacked planes