Actually yes. You can find organisms, like bacteria, living in deep oceans, which do not have access to sunlight. There are cases in which they use thermal resources in order to produce energy. They are called <span>chemoautotrophs. You can find them around deep ocean "smokers".</span><span />
Spine or Vertebral column is composed of a series of 31 bones known as vertebrae.Spine or Vertebral column is composed of a series of 31 bones known as vertebrae. Curvature of the spine serve the body by giving additional springiness and flexibility to the spine by absorbing the shock Curvature of the spine serve the body by giving additional springiness and flexibility to the spine by absorbing the shock.
The answer is true. Their strike can break aquarium glass and even split open human thumbs.
Destruction of biodiversity. Water pollution depletes aquatic ecosystems and triggers unbridled proliferation of phytoplankton in lakes — eutrophication —. Contamination of the food chain.Human diseases: Pathogens(viruses,bacteria,fungi,protozoa etc)are biological pollutants of water. They cause typhoid,cholera,dysentery,jaundice,hepatitis.
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Answer: Van der Waals forces
Explanation:
Van der Waals forces are weak intermolecular forces that depend on the distance between two particles. They are caused by correlations in the change in polarization between two nearby particles. To put it in other words, when a particle changes its polarization (becomes more positive on one end and more negative on the other), so does the adjacent particle, and the next one, and so on. This causes these particles to stick together weakly.
The tiny "hairs" increase the surface area of the gecko's feet in contact with the wall, which makes the bond stronger and allows it to support all of its weight.
Because experiments have shown that geckos stick well to both hydrophobic and hydrophilic surfaces, we can assume there aren't any hydrogen bonds present.
Ionic bonds can't be present either because geckos wouldn't stick to electrically neutral surfaces, as these bonds require charged molecules.
