3. naturally occurring
4. fossilized plants or air bubbles ( probably the plants tho)
5. increased
6. the green house effect occurs naturally, it is being polluted both naturally and unnaturally, the unnatural pollution is contaminating our 'greenhouse" and that is horrible.<span />
This is called the Green house effect
Its A. archaea hope this helps
The correct answer is an F1 generation.
The parent plants in the experiments conducted by Mendel are considered as the P (for parent) generation. The F1 stands for the first filial generation, which was obtained on cross-pollinating the parent plants. The F2 stands for the second generation, which is attained after self-pollinating the F1 generation plants.
