How the planets are formed? Planets form from particles in a disk of gas and dust, colliding and sticking together as they orbit the star. The planets nearest to the star tend to be rockier because the star’s wind blows away their gases and because they are made of heavier materials attracted by the star’s […]
What are two properties of the image seen from a plane mirror?
What are two properties of the image seen from a plane mirror? Images formed by plane mirrors are virtual, upright, left-right reversed, the same distance from the mirror as the object’s distance, and the same size as the object. What are the four properties of plane mirror? Properties of an image formed by plane mirror […]
How do you find the pH of 0.01 m NaOH?
Why do earthquakes occur in western South America?
Why do earthquakes occur in western South America? Most of the large earthquakes in South America are constrained to shallow depths of 0–70 km as a result of both crustal and interplate deformation. Crustal earthquakes are caused by deformation and mountain building in the overriding South America plate and generate earthquakes as deep as approximately […]
Do mollusks have a closed circulatory system?
Do mollusks have a closed circulatory system? Most mollusks have an open circulatory system but cephalopods (squids, octopus) have a closed circulatory system. The blood pigment of mollusks is hemocyanin, not hemoglobin. The heart of a clam can be seen in the photograph below. What organisms have a closed circulatory system? In (a) closed circulatory […]
How are gas turbines cooled?
How are gas turbines cooled? Fogging. Inlet air fogging consists of spraying finely atomized water (fog) into the inlet airflow of a gas turbine engine. The water droplets evaporate quickly, which cools the air and increases the power output of the turbine. What is reheating and regeneration of gas turbine? Reheating is applied in a […]
What is the most significant predictor of basal metabolic rate?
What is the most significant predictor of basal metabolic rate? The major factor determining basal metabolic rate (BMR) is fat-free mass (FFM) (1–3), with some studies finding an additional contribution of fat mass (FM) (4, 5), but others failing to find such an effect (6, 7). Which person would you predict to have the highest […]
What percent humidity should I set my dehumidifier at?
What percent humidity should I set my dehumidifier at? The optimal relative humidity level is between 30 and 50 percent, according to Energy Star (and 30 to 40 percent in colder areas during heating season). If the humidity is higher than that, it can breed dust mites, mildew, and mold, and trigger allergies. Can mold […]
How do hydrogen bonds affect water?
How do hydrogen bonds affect water? The presence of hydrogen bonds also makes water molecules more ‘sticky’ or in scientific terms cohesive and adhesive. The small charges on the water molecules allows them to stick together which is why water has a ‘skin’ that small insects can walk on, and also explains why water can […]
How can I boost my immune system in one day?
How can I boost my immune system in one day? Here are 9 tips to strengthen your immunity naturally. Get enough sleep. Sleep and immunity are closely tied. Eat more whole plant foods. Eat more healthy fats. Eat more fermented foods or take a probiotic supplement. Limit added sugars. Engage in moderate exercise. Stay hydrated. […]