Planting grass and trees would stop erosion.
Answer:
Stars
Explanation:
I think back then that ancient civilizations trusted the night sky or more advanced ones used compasses before maps were made and trusted. The Mayans I believe practiced astrology (astronomy?) and we still do know because the sky is always there for us.
The correct answer is - 100 m and 2000 m.
The thermocline represents an abrupt, sudden, rapid, drop of temperature in a body of water. In the big bodies of water, like the oceans, the thermocline is the separation line between the upper layers of the water that are warmer and more wild, and the lower layers of the water that are colder and much more calmer. In this case, the thermocline appears between 100 meters and 200 meters, and we know that because it is between these two depths were we have the biggest difference in temperature drop, which in the given situation is 13 degrees.
The Andes or Andean mountains are the longest continental mountain range in the world and they extend from north to south through seven South American countries.
