Answer:
When sound gets louder, there are more vibrations and higher amplification.
It mostly looks all dark with the x-ray pictures also looks like a black hole.
Answer:
Hydrogen
Explanation:
Because helium is a noble gas with a full valence shell, it does not bond with other atoms readily. This means that it cannot be a molecule. However, hydrogen can bond with a lot of things, because of its unique property of having just one electron, meaning that it can donate or accept one, making it able to easily become a molecule. Hope this helps!
Although there's plenty of nitrogen in the air, it's not in a form plants can use. They can only absorb nitrogen in the form of ammonium, nitrite, and nitrate. One way plants have access to these forms of nitrogens is decomposition of organic matter by soil organisms. Another source of usable nitrogen are mutualistic relationships between plants and bacteria. By providing nitrogen-fixing bacteria a place to live and feeding them with carbohydrates, plants get nitrogen in the form of ammonium. Plants that can do this include most legumes which form relationships with Rhizobium bacteria, and other plants like alder, bayberry, California lilac, and Russian olive that support Frankia bacteria on their roots.
There are also free-living nitrogen-fixing bacteria, as well as cyanobacteria that grow on the surface of plants or the soil, that add small amounts of plant-usable nitrogen to the soil. Lightning also generates usable nitrogen compounds.
Chemical fertilizer is a major source of plant-usable nitrogen. But other human activities, like the burning of fossil fuels and livestock operations, inadvertently produce widespread, nitrogen-enriched rainfall.
There might desire to be a uncommon exception or 2 yet 2 wide-unfold strategies create maximum minerals: freezing from a soften or precipitating from answer. As molten magma cools, the two at intensity or on the floor, particular minerals freeze out at a given/tension. with the aid of fact the magma cools further, different minerals freeze. This ameliorations the composition of the the rest molten fabric and a few intense-temperature minerals might re-dissolve in the cooler soften. maximum undemanding minerals result from cooling melts. Geothermal and floor waters (and to a pair quantity carbon dioxide) continuously comprise dissolved components and those can precipitate out with the aid of fact the temperature, tension, pH, dissolved concentrations etc. replace. sometimes this precipitation is biologically mediated, for occasion, limestone is brought on from seawater by utilising countless organisms. lots of the greater uncommon and unusual minerals, particularly metallic ore minerals, are formed by utilising hydrothermal precipitation. Many minerals, quartz, for occasion, can variety the two way.
