Tips for using the tracing numbers worksheets. Start with the writing numbers worksheet for number 1. That is not only the first number your child will begin counting with, but it is also the easiest number for children to write. Direct your child to trace each number following the direction of the arrows to learn the proper formation.
Marine debris can enter the ocean in a variety of ways. From land, trash may be carried to the ocean in rivers or storm and sewage drains, swept from the beach by waves and surf, or blown offshore by winds, especially during heavy storms.he most common way to measure floating plastic in the ocean is to collect it using very fine-meshed nets towed at the ocean surface from a ship. At SEA we have been measuring plastic debris using this method for more than 25 years.
Alcyon, the boat which undertakes an expedition from the Mediterranean Sea to the Spitzberg, just went through the Strait of Gibraltar. This is a good opportunity to wonder where the water of the Mediterranean comes from.ell the Mediterranean is not emptying itself, so water must come from somewhere to fill the gap. The origins of this water are: 1  a small quantity coming from the rivers and the rain (1200 km3 per year); 2  a very small quantity coming from the Black Sea (200 km3 per year);