What are the two types of photoreceptor cells in the eye? Two types of photoreceptors reside in the retina: cones and rods. The cones are responsible for daytime vision, while the rods respond under dark conditions. What will happen if there were no photoreceptors in the eye? A person will not be able to see […]
What effect does the release of volcanic gases and ash?
What effect does the release of volcanic gases and ash? Below is an overview of materials that make their way from volcanic eruptions into the atmosphere: particles of dust and ash, sulfur dioxide, and greenhouse gases like water vapor and carbon dioxide. Volcanic ash or dust released into the atmosphere during an eruption shade sunlight […]
Is there a max temperature in the universe?
Is there a max temperature in the universe? Certain cosmological models, including the one that has held sway for decades, the Standard Model, posit a theoretical highest temperature. It’s called the Planck temperature, after the German physicist Max Planck, and it equals about 100 million million million million million degrees, or 1032 Kelvin. How long […]
What is Archimedes Principle class 9th?
What is Archimedes Principle class 9th? Archimedes’ principle states that: “The upward buoyant force that is exerted on a body immersed in a fluid, whether partially or fully submerged, is equal to the weight of the fluid that the body displaces and acts in the upward direction at the center of mass of the displaced […]
How are cations removed from water?
How are cations removed from water? Water softeners remove cations (positively charged ions such as calcium and magnesium) and replace them with sodium. Anion exchange devices remove anions (negatively charged ions such as arsenic and nitrate) and replace them with chloride. Mixed media ion exchange units remove both cations and anions. What is cation used […]
How much uranium do you need to power a city?
Why do you want this job?
What is the advantage and disadvantage of gamma ray?
What is the advantage and disadvantage of gamma ray? No electrical or water supplies needed; Equipment smaller and lighter; More portable; Equipment simpler and more robust; More easily accessed; Less scatter; Equipment initially less costly; Greater penetrating power; Disadvantages of gamma rays compared with X-rays. How are gamma rays used for medical purposes? Uses in […]
What color is gamma rays?
What causes the diffusion of oxygen into a plant cell?
What causes the diffusion of oxygen into a plant cell? The higher concentration of carbon dioxide in the air around the plant causes the gas to move into the leaf by diffusion. It diffuses through small pores called stomata. During photosynthesis, oxygen levels inside the leaf increase. This causes oxygen to diffuse out of the […]