Answer:
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structuctre. It is formed in the mantle and delivered to the surface by deep source volcanic eruption.
Explanation:
it have exquisite beauty, inner fire, and unique physical quantity have made them so precious.
Answer:
i dont know but i think both
Explanation:
hope i helped
This is called 'controlled' or 'prescribed' burning. Usually fires in the environment are regarded as undesirable and dangerous, but fires actually fulfil an important ecological role, and animals and plants had adapted to a certain frequency and intensity of fires. The seeds of some trees or grasses germinate after forest or grass fires, as the more open conditions after a fire allows the seedlings to compete and avoid being shaded and smothered by more established trees. Unfortunately, farming and forestry practices have in many cases resulted in a reduction of fires. A reduction in the frequency of fires also allows the build up of dead wood, and when a wild fire does occur, the amount of available fuel results in very hot, large and damaging fires. Therefore, management of forests and other environments such as prairies often use controlled burns to avoid the buildup of dead organic mass and to replicate the natural fire cycle.
D = m/v
1) 10*9*6 = 540 cm3 (volume of bar)
2) 873/540 = 1.62 g/cm3
The answer is A)
<span>Duchenne Muscular Dystrophy (DMD) leads to progressively worsening physical disability. Death often occurs by age 25, typically from lung disorders. However, advances in supportive care have resulted in many men living much longer than this.Specific common causes of death include:
Cardiomyopathy (can also occur in female carriers, who should also be screened)
Congestive heart failure (rare)
Deformities
Heart arrhythmias (rare)
Mental impairment (varies, usually minimal)
Permanent, progressive disability, including decreased mobility and decreased ability to care for self
Pneumonia or other respiratory infections
Respiratory failure</span>