Pollution would be a good example for it
Answer:
Gestational age may be overestimated by up to six weeks by assuming that the fundus reaches the umbilicus or that fetal heart tones appear at 20 weeks. However, carefully derived obstetric estimates potentially may be more reliable than pediatric estimates.
Answer:
She can see improvments in areas of mental condition and health, including overall hapiness; ability to communicate, socialise, etc.
Explanation:
What exactly are you asking?Biotic factors are living organisms,therefore that means that ANY living organism that lives in that environment would be considered to be a biotic factor of the environment.
