Level 4 includes the material that are extremely hazardous to health. Inhalation, skin contact , swallowing , Injection, etc. are required full protection gear so that none of our skin surface is exposed because these main routes of entry.
There are different ways a person can come into the contact with hazardous chemicals , which is known as expose pathways. And all these are the basic exposure pathways- inhalation, ingestion and skin contact.
There are four levels or the category of toxicity.Toxicity is define as the concentration or the amount of a particular agent that reaches a target organism, system or population in a specific frequency for a fixed duration.
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Yes we should opt for sustainable techniques while construction and developmental activites because-
- It is sustainable and long lasting.
- Environement friendly.
- Cost effective in long run.
- No harmful effect on humans.
- Judicious use of available resource.
Explanation:
The world is undergoing an overarching danger of disastrous peril which would be strong enough to wipe out the last traces of human civilisation to its bequeathed end. To prevent such happenings, it becomes urgent that we employ sustainable techniques in construction and developmental activities.
These sustainable techniques are advantageous to humans at large due to the following benefits-
1. It is sustainable and long-lasting- The process is sustainable and hence has a longer shelf life as compared to other processes. Due to its sustainable nature, the process has the least impact on other processes in its surrounding.
2. Environment friendly- This is another important aspect of it. Sustainable techniques are distinct from others due to its environment-friendly nature.
3. Cost-effective in long run-These techniques prove to be cost-effective in longer periods. Due to extended shelf time, the cost per unit time tends to be low.
4. No harmful effect on humans-Sustainable techniques casts minimal to no impact on human, unlike erratic techniques.
5. Judicious use of available resource-Sustainable techniques re judicious in the utilisation of the existing resources. They make the optimum utilisation of the resources thus enabling humans to enjoy the maximum potential use of the resources.
The Digestive System prepares food for absorption into the bloodstream.
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Answer:
Hiya! I hope this helps:
Explanation:
Aviod multitasking, multitasking can cause ADHD symptoms to get worse for people. Use tools that will help you stay organized, like folders and such. Practice relaxtion, it really helps <3
Answer:
It is most likely going to be C. Susan is on a fixed-ratio schedule of reinforcement.
Explanation:
