Answer:
the awnser is c because plants are not likely to present
Explanation:
in texas
Answer:
Fuel combustion from motor vehicles (e.g. cars and heavy duty vehicles)
Heat and power generation (e.g. oil and coal power plants and boilers)
Industrial facilities (e.g. manufacturing factories, mines, and oil refineries)
Municipal and agricultural waste sites and waste incineration/burning
Residential cooking, heating, and lighting with polluting fuels
Answer: true
Explanation: i read it on khan academy
<span>The osteon is the fundamental functional unit of compact bone and it consists of concentric layers (lamellae), of compact bone tissue that surrounds a central canal.</span> <span>What gives a strength, hardness and rigidity to bone is the presence of mineral salt in the osteoid matrix, a complex of calcium and phosphate -hydroxyapatite. Calcified bone contains about 25% organic matrix (2-5% of which are cells), 5% water and 70% inorganic mineral (hydroxyapatite). So, <span>changes in hydroxyapatite would cause the bones to bend under a person's body weight. </span></span>