Seven thousand, four hundred.
Expanded form: 7,000 + 400
The disadvantages of hydroelectric energy would be the disruption of habitats, flooding, lack of sites and that sites may stop producing energy. <span>The most common type of </span>hydroelectric power<span> plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity.</span>
Answer:
a, b, c, a, a , c, c, a, a, b.
Explanation:
1. A
2. B
3. C
4. A
5. A
6. C
7. C
8. A
9. A
10. B
good luck.