What color does not absorb light?

What color does not absorb light? A white object reflects all colors of white light equally. If an object absorbs all colors but one, we see the color it does not absorb. The yellow strip in the following figure absorbs red, orange, green, blue, indigo and violet light. How do I fix a room with […]

What is the deadliest type of nuke?

What is the deadliest type of nuke? Russia declassifies footage of ‘Tsar Bomba’ — the most powerful nuclear bomb in history. The blast was more powerful than 50 million tons of TNT, and was felt hundreds of miles away. In October 1961, the Soviet Union dropped the most powerful nuclear bomb in history over a […]

What stays green all year round?

What stays green all year round? Evergreen plants and trees stay green all year long — hundreds of species thrive in climates around the world, including U. S. Department of Agriculture plant hardiness zones 8 through 10. Flowering evergreen plants, trees, shrubs, ground covers and vines bring color to gardens and landscapes. What is the […]

What are the advantages and disadvantages of nuclear power plants?

What are the advantages and disadvantages of nuclear power plants? Advantages and disadvantages of nuclear power stations Advantages Disadvantages Produces no polluting gases. Waste is radioactive and safe disposal is very difficult and expensive. Does not contribute to global warming. Local thermal pollution from wastewater affects marine life. How long does nuclear waste need to […]

What is the role of parent material in soil formation?

What is the role of parent material in soil formation? The parent material of a soil determines the original supply of those nutrient elements that are released by weathering and influences the balance between nutrient loss and retention. Organic acids and exudates produced by microorganisms and plants enhance the weathering of minerals and the release […]

How do volcanoes affect people?

How do volcanoes affect people? Fast-moving lava can kill people and falling ash can make it hard for them to breathe. They can also die from famine, fires and earthquakes which can be related to volcanoes. People can lose their possessions as volcanoes can destroy houses, roads and fields. Lava can kill plants and animals […]

Why are bones spongy?

Why are bones spongy? Spongy bone reduces the density of bone and allows the ends of long bones to compress as the result of stresses applied to the bone. Spongy bone is prominent in areas of bones that are not heavily stressed or where stresses arrive from many directions. Is spongy bone soft? Though spongy […]

Can I check my iron levels at home?

Can I check my iron levels at home? The BIOSAFEAnemia Meter is the first FDA-approved, hand-held device that can be conveniently used at home to test hemoglobin levels (Figure 1). Low levels of hemoglobin may indicate anemia. Thus, the Anemia Meter may be used as an additional screening method. It is not recommended for use […]

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