True, because atoms bonds together and form molecules in different sizes and shapes.
The answer for the first one is the first row
TT, to, GG, gg
The right answer is mitosis.
Mitosis refers to the chromosomal events of eukaryotic cell division. This is a nonsexual / asexual duplication (unlike meiosis).
It also refers to a very particular stage of the eukaryotic cell cycle, called the "cell cycle", which is the stage of duplication of each chromosome of the mother cell and of their equal distribution in each of the two daughter cells.
Mitosis allows the formation of two daughter cells strictly identical genetically to the mother cell.
Trees in the rainforests store CARBON DIOXIDE. The trees absorb CO2 and therefore when they are cut down, they release the stored CO2 into the atmosphere which contributes the climate change. The correct answer to this question is letter "B. Carbon Dioxide". I hope this helps.