Persistent chlorinated hydrocarbon pesticides persist in the environment and accumulate in the foods chain causing harmful effects on the environment including posing a threat to humans health in the long term. Nonpersistent organophosphate pesticides are more toxic than the former but degrade after a short life span. Therefore they cause immediate harm in case one is in contact with them.
The fact that they do not accumulate in the environment, they are more favourable than chlorinated hydrocarbon pesticides. Chlorinated hydrocarbon pesticides will affect several generations due to their accumulation in the environment. However they don't need to be re-applied hence are less expensive
Answer:
D
Explanation:
Bohr determined that there are discrete (unique, different from one another) energy levels in the atom and that electrons will orbit the nucleus within these energy levels, known as orbitals.
Answer:
I think it is C but I'm not 100% sure
Cant tell you the types, but they form from the weather elements, from being compressed, etc
<span>The patient has brain damage in the sensory cortex.
The nurse tested if he was </span><span>able to recognize writing on the skin just by the sensation of touch.That ability is called </span><span>Graphesthesia and a </span><span>patient with damage in the sensory cortex
has impaired sensory perception and thus will not be able to identify
the number traced.</span>
