<span>Chromated copper arsenate, or CCA, is a pesticide that has been used for years in
pressure-treating lumber to prevent destruction from rot and insects. Arsenic, a toxic
chemical, can leach from this treated wood, leaving residues on the wood’s surface and in
nearby soil. Young children who play on or near decks or playscapes made from CCA-
treated wood can get arsenic on their skin and into their bodies, especially if they eat or
drink without washing their hands.
Because of the health risks of long-term exposure to arsenic, the Environmental
Protection Agency (EPA) has announced that as of December 31, 2003, arsenic Currently the EPA does not recommend that people remove existing structures made with CCA-treated wood or the soil surrounding those structures. However, they do recommend that people reduce their potential exposure to arsenic.</span>
Answer:
Explanation:
In an atom, there is a dense center known as the nucleus. It is made up of two subatomic particles: <u>protons</u> and <u>neutrons</u>. The protons have a positive charge and the neutrons have no charge, so overall the nucleus is positively charged.
The third subatomic particles, negatively charged electrons, are located around the nucleus in a cloud.
The particles in the nucleus are 
.
Answer:
Correct answer is ''e'' the sympatetic nervows system
Explanation:
THE ENDOCRINE SYSTEM How does the endocrine orchestra work? 1- Nervous Stimuli to the Hypothalamus production of releasing (stimulatory) or inhibitory hormones, transported via a portal system of vessels to the anterior pituitary gland 2- Anterior Pituitary Gland pituitary trophic hormones 3- Pituitary trophic hormones stimulate Peripheral Endocrine Glands production of peripheral hormones 4- Hormone/Receptor Interactions in target organs hormone actions 5- Peripheral hormones exert Negative Feedback Mechanisms supression of hypothalamic & pituitary hormones.
The answer is cotton. It is natural because it is grown and easily woven in to clothes :)
