Answer:
to illustrate the order of which events happen on earth.
Explanation:
Answer:
Al₂O₃ + 6HNO₃ → 2Al(NO₃)₃ + 3H₂O
Explanation:
left side of arrow right side of arrow
Al 2 1
O 3 1
H 1 2
NO₃ 1 3
Al₂O₃ + 6HNO₃ → 2Al(NO₃)₃ + 3H₂O
now there are,
left side of arrow right side of arrow
Al 2 2
O 3 3
H 6 6
NO₃ 6 6
you have to try and multiply different numbers and stop when you have equal molecule on both sides of the arrow.
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Answer:
The correct answer is a.
Explanation:
Asthma is characterized by a chronic inflammatory process of the airways in which a variety of cells predominate, such as eosinophils, neutrophils, and mast cells. Chronic inflammation produces an increase in airway reactivity and recurrent episodes of wheezing, respiratory distress, intercostal pulling, coughing, and chest tightness, especially at night and in the morning. Asthma is a disease in which there is bronchial hyperresponsiveness, which is an exaggerated response of the bronchial mucosa and leads to bronchospasm and bronchitis.
Answer:
survive in their environment
Explanation:
According to Darwin's theory of evolution, natural selection is the main mechanism. Darwin explains that organisms that have heritable traits that help them survive and reproduce, will be favorable by natural selection. Those favorable traits will enable organism to better adapt to their environment and to pass more genes on to the next generation (offspring).
Organisms adapt to their environment by changing their behavior, structural traits or physiology as a response to environmental change, so that they become well suited to it.