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The Whys of the Animals (continued)

What is the biggest whale in the world? It is the blue whale. Adult can measure 30 meters in length! However, she only eats tiny animals. If not hunted can live more than 50 years. Why do whales expel large jets of water? Whales can dive for almost half an hour holding their breath, but they are forced to rise to breathe.
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Articles

Soil is a great filter

In order to obtain healthy plants and a productive garden, the soil must contain water. Water holding capacity depends on soil type. Water, as a solvent liquid, dissolves the salts in the soil, so that plants can absorb them. Not all rainwater flows directly into streams, streams and rivers.
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Community Dynamics

In an ecosystem, there are many types of interactions between the components of the various species. We can classify relationships between living beings initially into two groups: intraspecific, which occur between beings of the same species, and interspecific, between beings of different species. It is common to differentiate relations into harmonic or positive and inharmonious or negative.
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Sciences

This section is dedicated to science education (elementary school content). Click on the desired subject name to view its content. Universe Emergence of the Universe Stars Constellations Galaxy Solar System Planets Satellites Comets Asteroids Meteors The Moon Eclipses Air Carbonic Gas Nitrogen Noble Gases Water Steam Atmospheric Pressure Weather Forecast Air Masses Temperature and Humidity Meteorological Stations Air Pollution O Greenhouse Effect Thermal Inversion Water Physical States of Matter Physical State Changes Water Properties The Water Cycle The Water Quality Water Pollution Sources Treatment Stations Transmitted Diseases Water, Mosquito and Diseases The Planet Inside and Out Plate Tectonics Earthquakes Volcanoes Rocks, Minerals and Soil Magmatic or Igneous Rocks Sedimentary Rocks Metamorphic Rocks The Soil Cycle Soil Formation Soil Types Farming Agriculture Sustainable Agriculture Pollution Destination Soil Erosion Recycling Importance and Benefits Recycling Symbology recycling Paper recycling Glass recycling Metal recycling Plastic recycling Recycling batteries and batteries Recycling debris Tire recycling Non-recyclable materials Cooking oil recycling Ecology What does ecology study?
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In details

Glycolysis

As we have seen, glycolysis consists in the transformation of one glucose molecule over several steps into two pyruvic acid molecules. In this process four hydrogens are released, which combine two by two, with molecules of a cell substance capable of receiving them: NAD (nicotinamide adenine dinucleotide).
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Food Preservation Techniques

There are various techniques for preserving foods so that they do not spoil, lose their nutritional value, or undergo any kind of alteration. The main ones are: boiling, cooling / freezing and dehydration. Boil Cooked foods stay longer than raw foods, because boiling kills the microorganisms contained in the food.
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