Is this multiple choice? If so, can you show it so I can help?
With everything else as constant (the planet's gravity, itself), then yes, this is true. But, if the planet's gravity still exists, then the Sun's gravitational force doesn't matter as much because of the astronomical distance between the two bodies.
Not enough oxygen
rainforests will turn into desserts like the Sahara dessert which use to be a tropical place.
Answer: A higher dependency ratio is likely to reduce productivity growth. A growth in the non-productive population will diminish productive capacity and could lead to a lower long-run trend rate of economic growth.
Hydroelectric energy
Explanation:
In a dam area, the most likely energy resource would be an hydro-electric energy source.
Here the dammed water is used to produce electricity by forcing turbines to rotate.
- Hydroelectric power stations are sited near huge water bodies especially a dam.
- The moving water is used to drive heavy turbines that been designed to move electricity.
- An area with huge amount of water has immense potential to generate hydroelectric power.
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