Answer: Nitrogen fixation in soil is important for agriculture because even though dry atmospheric air is 78% nitrogen, it is not the nitrogen that plants can consume right away. Its saturation in a digestible form is a necessary condition for crop health. ... It is possible thanks to nitrogen-fixing organisms and crops.
Explanation:
The main source of water in the Northwest of China are rivers and Lakes.
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Pulmonary Disease especially in children. Cardiovascular Effects. <span>Another danger of air pollution is toxic particulates, such as lead, mercury, and arsenic. When inhaled, these particles can build up in your body over time and cause health problems once concentrations reach dangerous levels. Arsenic can increase your risk of cancer; mercury can cause nerve damage and birth defects; and lead can cause learning disabilities and impair brain functions, especially in children. In high concentrations, many of the substances found in air pollution can be fatal.</span>
B. Quickly evaporating rainwater
Explanation:
Movements of tectonic plates create volcanoes along the plate boundaries, which erupt and form mountains. A volcanic arc system is a series of volcanoes that form near a subduction zone where the crust of a sinking oceanic plate melts and drags water down with the subducting crust. pls mark me branilest pls
