C cause it let certain type particles to move threw
The natural gas is composed of methane, butane, propane and a small amount of iso-Butane.
These all are organic compound (alkanes) and burn in presence of the oxygen to give carbon dioxide. The burning of the alkanes is type of exothermic reaction, which means they liberate heat energy on reaction. The enrgy is released due to the braking of the bond and the formation of the new bonds.
Hence, it can be concluded the chemical taking place at the time of burning of these gases gives off the energy.
B/biosphere oh i can’t answer without 20 letters
Regardless of being unicellular or multicellular, any individual form of life capable of growing, metabolizing nutrients, and usually reproducing is an organism.
In this question, we will understand the air path from entering the nasal passages to reaching the alveoli, where gas exchange takes place.
<h3>What is the air's path to the lungs?</h3>
The air penetrates through the nasal passages, passes through the pharynx, larynx and trachea, bronchi, reaching the lungs where it travels through the bronchioles until reaching the alveoli, where gas exchange takes place. The difference between inspired and expired air is in the concentration of oxygen and carbon dioxide.
a) Blood leaving the air sacs is rich in oxygen gas.
b) When exhaling, the breath is rich in carbon dioxide.
c) If you trace the path of air moving through the respiratory system, it would enter through the mouth and nose. It continues through the pharynx, into the larynx, through the tubes and into the trachea and finally reaches the lungs.
Learn more about breaths in brainly.com/question/10876081
#SPJ1
