<u>Answer:</u>
<em>Ensuring a sustainable supply of food for the world's fast growing population is a major challenge. Food production is one of the key areas that require action, alongside issues of food consumption, nutrition and food security.
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It is estimated that by 2050 the world's population will reach 9.1 billion (34% higher than today). Food production will need to increase by 70% to feed the larger and most likely more urban population.1 More food will have to be produced using less land. In addition water and energy will become limiting factors.
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Added to the challenge is that sustainable food products need to be nutrient-dense to allow people to have a diverse diet that contains a balanced and adequate combination of energy and nutrients to support good health.</em>
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Answer:
Chemicals from the vents feed bacteria which, in turn, produce sugar and other food for organisms.
Explanation:
"Hydrothermal vents" are cracks or opening in the seafloor. From here, geothermally heated water goes out. These vents allow another way for marine animals to thrive in comparison to the photosynthesis.
Bacteria found in the vent contain no chlorophyll. Instead of using energy from the sunlight, the bacteria uses "hydrogen sulfide" that comes from the vent. Although this chemical is toxic for common animals, it is essential for the bacteria in the hydrothermal vents. It allows them to process their food in order to produce sugar. This process is known as<em> "chemosynthesis." </em>
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Answer:
Plants
Explanation:
Assuming that "foce" means "force", Plants aren't a part of physics. While motion, energy, and force are.
The coastline.
Hope this helps!
Answer:
space
Explanation:
As air gets warm, the air molecules have more energy and move around more, taking up more space. As the warm air expands, it becomes less dense than the cold air, so rises up and floats above the cold air.
