At both new and full moons (lunar phases) the tides are most pronounced (for example, the highest high tides).
Answer:
Towns grew up along the rivers which had access to the sea. Rivers also provided protection from invaders. Farmers grew crops in the fertile fields that surrounded the towns. The lack of mountains was good for farming, but it made the towns easier to be invaded by enemies.
Explanation:
The correct options are:
- Improved engines; engines were improved significantly so that they can have the same power and agility but by using less fuel.
- Cleaner burning fuels; it has been invested a lot of time and money into improving the fuels and making them as effective as possible but also removing or lowering the most dangerous components towards the environment.
- Catalytic converters; this devices for exhaust emission control manage to convert the toxic gasses and polutants into less toxic pollutants by managing to catalyze a redox reaction.
Explanation:
Developed Countries: Developed Countries have advanced economies, good infrastructure, and a high standard of living. Their markets will be highly regulated and high per capita income.
Emerging Countries: These countries will have a developing and manufacturing base with rudimentary infrastructures. Emerging countries are the suppliers of natural resources to the more advanced and developed countries. Their per capita income would be low as compared to developed nations.
Developing Countries: Developing countries economies are the same as the emerging countries.
Big Bang Theory, creation by deities (God, Buddha, etc) and Darwinism I would think.
