The number of available electrons. bonds to other atoms occur when both of the atoms in the compound or miles have available electrons to connect to other atoms
Channel proteins help large molecules pass through the cell membrane.
Flatworms have no need for circulatory and respiratory systems because they are able to actively diffuse oxygen through their skin and their body layout is such that they do not need to transport oxygen in order for it to get to their cells.
No, halite is not more valuable than gold
Thunderstorms
Layers of warm, moist air rise in a strong updraft to cooler areas of the atmosphere, whereupon thunderstorms form. At that location, the updraft's moisture condenses to create imposing cumulonimbus clouds and, eventually, precipitation.
Thunderstorm development requires three basic components: moisture, an unstable atmosphere, and a method to get the atmosphere moving. To create thunderstorm clouds and precipitation, moisture is required.
The warm air cools and condenses as it ascends, generating tiny water droplets. When there is sufficient instability in the atmosphere, warm air rises swiftly, and the water vapor condenses quickly to form cumulonimbus clouds. Usually, it takes less than an hour for these cumulonimbus clouds to form.
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