They may experience irritability and depression because when a person constantly smokes, his/her brain begins to rely on the chemicals it gets from the person smoking, which results in the brain "getting lazy" and not producing the chemicals anymore. If the person were to suddenly quit, the brain would lack in the chemicals it had stopped producing, making the person feel constantly annoyed and depressed because of the chemical imbalance.
Answer:Both of these materials emit numerous volatile organic compounds (VOCs), many of them toxic. In addition to VOCs, the printing process generates nano particles which pose a respiratory hazard. More novel applications involve the printing of biological scaffolds used to generate organs and other structures.
Explanation:
Answer:
Mutations
Explanation:
A gene mutation is a permanent change in the DNA sequence of a gene. Mutations can occur in a single base pair or in a large segment of a chromosome and even span multiple genes. Mutations can result from endogenous (occurring during DNA replication) or exogenous (environmental) factors.
Vitamins all pregnant women need to be nourished
Benign tumors are not cancerous. Malignant tumors are cancerous.
Benign tumors usually aren't problematic while malignant tumors grow and spread quickly putting you in harms way.
