This is referred to as Sleep Apnea.
Organisms need energy to conduct essential life activities. Basically, energy is essential to every organisms because it is their source of power to get food and to reproduce. Without it, organisms would not function properly and will soon die.
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Answer: salt
Freshwater is defined as having a low salt concentration, usually less than 1%.
Explanation:
Freshwater refers to the bodies of water that contain very low levels of dissolved salts. So, freshwater are unique for their low salt content (about 0.5% of salt) compared to the sea water with high salt content.
Examples of freshwater include rivers and spring
Answer: Farming
Explanation: Plowing the land is the first source of wealth.
