Answer:
A, B and D
Explanation:
Man-made disasters can be prevented by applying the options above.
Alarm systems have proven to be very effective in alerting people to potential dangers in their environment whether in the home or workplace. For example, a fire alarm which goes off on the detection of smoke enable people to evacuate a building and the fire department to be called in to contain the situation.
Plans for evacuation and shelter in the event of a disaster cannot be underestimated. For example, the evacuation of people living near and around nuclear reactor sites or chemical plants should be planned for.
Regular inspection by licensed inspectors, of man-made structures goes a long way in helping determine whether those structures are still durable and reliable. For instance, regular inspection of old architectures like buildings and bridges enable us see warning signs about a potential disaster and take steps to stop it.
Implementation of a fail-safe mechanism recognises potential failures in system designs and protects against such failures resulting in a fatality.
Answer: Reverse transcription
Explanation:
There is certain exception towards central dogma tat is described as follows:-
Reverse transcription:- it is the enzyme that helps in conversion of RNA into DNA as per concept of retrovirus.It has the ability to catalyze the DNA which emerges from RNA molecule.
RNA encoded virus in their life cycle experience a phase where they are approached through genomic RNA for getting converted into DNA which is caused through reverse transcriptase enzyme.
Answer: Saudi Arabia in economy, stands out in oil production, as it houses the largest reserve of this ore in the world, this is the main economic activity. Member of OPEC (Organization of Petroleum Exporting Countries), occupies the position of largest producer among all the members, besides producing natural gas.
Iran's GDP is $ 108.2 billion and most of that is raised from oil exploration, the country is the second largest producer in the region behind Saudi Arabia. In addition, Iran is known for the quality of its carpets and caviar. The Iranian currency is the Iranian rial. 21.1 million people represent the workforce. In agriculture wheat and barley stand out; Industry: textile, food and transport equipment. Fishing also stands out. In Livestock, sheep and goats are raised.
B. would be the correct answer
