GEOGRAPHICAL KNOWLEDGE AND UNDERSTANDINGThe learner will be able to demonstrate geographical and environmental knowledge and understanding.
Assessment standards(ASe)
We know this when the learner:
2.1 describes and explains how natural hazards such as volcanoes, earthquakes and flooding occur, and their impact on human lives and socio-economic activities [people and places];2.2 investigates and explains why some people face a higher risk than others with respect to natural hazards [people and resources];2.3 identifies how risks and hazards can be managed [people and the environment].
Memorandum
Activity 1:
1. The effects of tropical cyclones:
Loss of lives among human beings and animals;
Rivers overflow and towns near rivers are also flooded or even destroyed;
Decaying bodies cause pollution and health hazards;
Bridges and roads are washed away;
Electricity, water and sewage services are interrupted;
Houses and other buildings are destroyed or severely damaged;
Crops are destroyed;
Gale force winds blow away roofs and uproot trees and shrubs. This is also dangerous as people might get injured;
No fresh water or food. This leads to famine and death.
Tropical cyclones originate in warm, humid tropical oceans. The strong winds cause gigantic waves in the oceans. These waves flood the coastal areas and cause enormous damage.
As soon as the tropical cyclone reaches the land, it has no warm, humid sea air to thrive on, and it dies away. That’s why there will still be gales for quite a time, but they subside as the cyclone dies.
The area of calm, cloudless skies in the middle (centre) of a tropical cyclone is called the “eye”. It has a width of about 35-50 km. Here the pressure is less than 1 000 kPa. The area directly around the eye is where the strongest gales occur.
Activity 2:
During tropical cyclones most deaths occur because of the floods. Rivers that suddenly come down may unexpectedly flood a region.
Some people try to cross a river which is in flood and are washed away by the water masses.
Gale force winds that blow away roofs and other items, may also cause deaths.
However, once the storm has passed, most deaths occur because of water pollution, health hazards, hunger and thirst.
Activity 3:
1. EMERGENCY SERVICES
Fire rescue teams must set out to extinguish possible fires.
Immediately start searching for bodies and animal carcasses.
Take fresh water and food supplies to be handed out to the people.
Take medical teams and supplies to treat the injured. Erect emergency hospitals.
Arrange for helicopter services to transport the injured to national hospitals outside the area as soon as possible.
Take or send specialists to repair the electricity, water and sewage services as soon as possible.
Repair all communication services as soon as possible.
Clear all debris and stray objects to prevent further injuries.
2. PRECAUTIONARY MEASURES
1. Promptly leave all low-lying areas.
2. Everybody should take care that their cars are filled up with fuel. Also check the battery, water, oil and tyres. If the need arises, evacuation can take place smoothly.
3. Conserve water for drinking purposes.
4. Stock up non-perishable foodstuffs.
5. Have a flashlight, first aid kit, fire extinguisher and battery radio at hand.
6. Stack all loose objects away or tie bigger items to sturdy pillars.
7. Secure all windows with nails and board
8. Listen to the radio and watch TV for information from the weather bureau.
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life