Why do divers exhale when surfacing? As the diver ascends, the air in the lungs expands as surrounding water pressure decreases. Exhaling allows excess volume to escape from the lungs, and by exhaling at a suitable rate the diver can continue exhaling throughout the ascent and still have air in his or her lungs at […]
What does access only mean?
What does access only mean? An ‘access-only’ road or street is that has a ban on motor traffic using it, except for access. The intention is to allow cycles (and people walking) to use the road as a through-route, while limiting motor traffic to just those vehicles accessing properties. What does this sign mean at […]
Which is older intrusion or extrusion?
Which is older intrusion or extrusion? Lava that hardens on the surface is called an extrusion. The rock layers below an extrusion are always older than the extrusion. There, the magma cools and hardens into a mass of igneous rock called an intrusion. An intrusion is always younger than the rock layers around and beneath […]
Why is graphite dangerous?
Why is graphite dangerous? Graphite is a form of pure carbon. It is not edible, but not chemically dangerous. Graphite can be made to be more dangerous than Pb depending on ingenuity. For instance if you powder graphite and force a person to breath the powder until they choke, it is more dangerous that a […]
Is heart disease still the number one killer?
Is heart disease still the number one killer? While heart disease is often considered a man’s disease, it doesn’t discriminate. It’s the number one killer of both men and women in the United States. How do you lower all cause mortality? They found that, compared with taking 4,000 steps per day, a number considered to […]
What do plants use to make their own food?
What do plants use to make their own food? The process by which land plants produce their own food using sunlight and carbon dioxide is known as photosynthesis (Figure 1). While carbon dioxide is absorbed by the leaves, the sunlight is captured by a chemical molecule in the plant, called chlorophyll (Chl). All photosynthetic organisms […]
How do you fix attackers might be trying to steal your information?
How do you fix attackers might be trying to steal your information? Attackers might be trying to steal your information from (for example, passwords, messages, or credit cards). NET::ERR_CERT_COMMON_NAME_INVALID Making sure my time / data settings are correct. Clearing all browsing data. Deleting and reinstalling Chrome. How do I make my WIFI private? Here a […]
What is the most common compound?
What is the most common compound? Glossary Compound Formula Abundance percent by weight Silicon dioxide SiO2 42.86% Magnesium oxide MgO 35.07% Ferrous oxide FeO 8.97% Aluminum oxide Al2O3 6.99% How do you know the difference between a compound and mixture? Compound:a substance that is made up of more than one type of atom bonded together. […]
Is the Moon dependent on the sun?
Is the Moon dependent on the sun? Moon depends upon the sun because it does not posess its own light. Seasons are created by the revolutionary period of the Earth. Moon revolves around the earth. Due to this, earth pulls the moon by its gravitational force. When the sun Earth and moon are positioned to […]
Is Type 1 or 2 error worse?
Is Type 1 or 2 error worse? Of course you wouldn’t want to let a guilty person off the hook, but most people would say that sentencing an innocent person to such punishment is a worse consequence. Hence, many textbooks and instructors will say that the Type 1 (false positive) is worse than a Type […]