Abiotic, if I remember correctly.
The correct answer is option b. Green year Round.
The green year a round trees are the evergreen trees, and they always remain green, they do not shed off their leaf completely at once. The deciduous forests are characterized by the presence of two seasons. In autumn, the deciduous forest shed off their leaves and become deprived of leaves and in spring, the new leaves come again.
Density...
Fire bricks absorb many btu’s, so once heated up only a small flame is required to maintain that heat/temperature.
The fire brick composition is mostly materials like alumina silica sand, clay, not very porous.
