What happens if you breathe in volcanic ash? Inhalation of volcanic ash can be very detrimental to human health, due to the harmful aerosols and poisonous gases the ash is made up of. Health effects inlcude respiratory problems, eye problems, and skin irritiation. One long-term effect of volcanic ash is silicosis. How dangerous is ash […]
What keeps the moon moving in a circular motion?
What keeps the moon moving in a circular motion? Gravitational attraction provides the centripetal force needed to keep planets in orbit around the Sun and all types of satellite in orbit around the Earth. The Earth’s gravity keeps the Moon orbiting us. It keeps changing the direction of the Moon’s velocity. What changes continuously in […]
Do sponges have a heart?
Do sponges have a heart? In summary, sponges – or poriferans – do not have a true circulatory system as most animals do. There is no heart, there are no veins or arteries, and sponges do not have blood. Water is pulled into the sponge via internal choanocyte cells, which take in water through the […]
What protects the cell and is selectively permeable?
What protects the cell and is selectively permeable? A selectively permeable (sometimes called semi-permeable) membrane allows some molecules across but not others. JOB: The cell membrane controls what enters and exits the cell and thus protects the cell. How do organelles help keep the cell alive? Core organelles are found in virtually all eukaryotic cells. […]
Can binaural beats make you hallucinate?
Can binaural beats make you hallucinate? Some people may hallucinate, in their own experience. Binaural beats are very subjective, some many people can listen to the exact same beat and have a different experience. They all have a particular frequency which helps to alter your brainwave pattern. This induces a state of mind depending on […]
How can I practice hockey at home?
How can I practice hockey at home? How to Practice Hockey Shooting at Home All Shooting Practice Is Good Practice. Time spent practicing is time spent improving, as long as you’re continuing to develop good habits. Choosing Your Space, Surface & Backboard. Set Up a Goal or Target. Pucks & Balls for At-Home Shooting. Shooting […]
What is the angle of incidence when the incident ray is normal to the interface?
What is the angle of incidence when the incident ray is normal to the interface? Complete step-by-step answer: If the incident ray is on the same path as the normal to the surface, the angle of incidence will be zero. Therefore, the angle of incidence when light incident ray is along the normal to interface […]