i think that lack of calcium makes your bones weak.
This term is used for the circumstances where human activity is increasing the occurrence of certain hazards beyond their natural probabilities. Evidence points to a growing disaster burden from such hazards. Socio - natural hazards can be reduced and avoided through wise management of land and environmental resources.
rocks falling
The main hazard is that you may fall. Other hazards are of dropping something, with the added hazard that what you drop may injure someone.
The answer your teacher is expecting is "calcium", though your teacher should have worded the question better; there are no alkali metals with 2 valence electrons. Calcium is an alkaline earth.
There are four electrolytes that are important to heart function, potassium, calcium, sodium and magnesium. Calcium is important in the actual contraction of the heart.
biological hazards, chemical hazards, ergonomic hazards, and physical hazards
Classifications for occupational hazards include physical hazards, chemical hazards, and biological hazards. Psychosocial hazards and mechanical hazards are the other two classifications.
indirect hazards are hazards that have immediate affect, while direct hazards are hazards that is caused by something else before it affects
There are several types of hazards that include physical hazards, chemical hazards, ergonomic hazards, and biological hazards. Hazards are found in homes, on the road, and in the workplace.
* Fire and explosion hazards * Health hazards
Identifying hazards and controlling riskIdentifying hazards and controlling riskIdentifying hazards and controlling riskIdentifying hazards and controlling risk
Identifying hazards and controlling riskIdentifying hazards and controlling riskIdentifying hazards and controlling riskIdentifying hazards and controlling risk
Chemical hazards is when there are chemical that are releasing toxic properties in the environment. Radio chemical hazards are when the chemicals release radiation.
Identify Hazards
fire and explosions hazards, health hazards
A. document hazards C. identify hazards of the job
Single hazards which consist of a pure element only, such as iron, copper, nitrogen etc. Compound hazards which consist of a combination of single hazards such as metal alloys, water, paint etc. Multiple hazards which are a combination of single and compound hazards or grouped together in a situation.