Was the Ark bigger than the Titanic? As you will soon see, conditions were not ideal. We know that the ark was bigger than a rowboat, but smaller than the Titanic. In fact, we know its exact size – it was 450 x 45 x 75 feet, with an approximate volume of 1,518,750 cubic feet. […]
Do fires raise soil pH?
Do fires raise soil pH? The impact of fires on vegetation and wildlife is obvious. Nutrient levels and soil organic matter both increase after fire. Spanish research showed a significant increase in soil pH, carbon and nutrients immediately after a prescribed grass fire. How is soil affected by fire? The most dramatic effect of a […]
What is the difference between the two igneous rocks?
What is the difference between the two igneous rocks? The two main categories of igneous rocks are extrusive and intrusive. Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust of the […]
Is oil a good energy source?
Is oil a good energy source? Oil is particularly useful as a fuel because of its high energy density. As previously mentioned, the original energy source of oil is the Sun, as the energy stored within dead organic matter is what creates crude oil over time. Why is oil a bad energy source? Burning Fossil […]
Does wind affect rain?
Does wind affect rain? Air Currents Prevailing winds bring air from one type of climate to another. For example, warm winds that travel over water tend to collect moisture as they travel; the water vapor in the air will condense as it moves into colder climates, which is why temperate coastal areas often receive heavy […]
Does buoyancy affect weight?
What is the most common type of corrosion on aircraft?
What is the most common type of corrosion on aircraft? Surface corrosion How do you fix aircraft corrosion? The methods normally used to remove corrosion are mechanical and chemical. Mechanical methods include hand sanding using abrasive mat, abrasive paper, or metal wool, and powered mechanical sanding, grinding, and buffing, using abrasive mat, grinding wheels, sanding […]
What happens if a hot air balloon gets a hole?
Do egg cartons reduce sound?
Do egg cartons reduce sound? The various textural ripples and waves of egg carton-shaped materials do not absorb sound waves in their entirety. Instead, they break these sound waves up into multiple frequencies and echo them in various directions, which radically reduces the level of noise production and echo in your room. How can you […]
What are 3 control variables?
What are 3 control variables? An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist. What is an example of the control group? A simple example of a control group can be seen in an experiment in which the researcher tests […]