THE MOST IMPORTANT QUESTION ANSWERS WHICH ARE REPEATEDLY ASKED IN ALL PUNJAB ( PAKISTAN) BOARDS
USING THE SCIENTIFIC METHOD
Q.NO.1: How
have scientific methods changed our lives?
Ans:
It has changed our way of living and thinking. It has also improved the means of transportation and communication. We are less fearful than our
forefathers. We try to find the logical reason for each event.
Q.NO.2: Which
disease once started spread in the community in the past?
Ans:
Smallpox, measles, whooping cough, scarlet fever, yellow fever,
malaria, typhus, cholera, and flu were the infectious diseases of the past.
Q.NO.3: What sanitary conditions were like a
hundred years ago?
Ans:
A hundred years ago, the sanitary conditions in the cities were very
poor. There were unpaved streets and garbage everywhere. Outdoor toilets were
common. People obtained polluted water from the wells for cleaning and drinking
purpose.
Q.NO.4: What are the sanitary conditions of our
cities today?
Ans:
Today, our city's streets are paved and well-drained. They are cleaned
regularly. It is against the law to throw garbage in the streets. Sewage is
carried through sealed pipes to disposal plants.
Q.NO.5: How
was water obtained in the past?
Ans: The people obtained polluted
water from wells for cleaning and drinking purpose. Buckets were also used to get water from wells, ponds, and canals.
Q.NO.6: How has
lost angles solved the issue of water?
Ans: Los angles has solved the problem by bringing water to the city from the Colorado River 544 km away. Water is carried through the pipeline to the district.
Q.NO.7:
What were our eating habits in the past?
Ans:
In the past, people could only eat fresh food. They could eat off-season
food by drying, pickling, canning, and salting.
Q.NO.8: How
has science changed our eating habits?
Ans: Science has changed our eating habits. We can
get fresh food throughout the year. Modern
methods of selecting, grading, and processing food have proved very useful. Milk,
eggs, potatoes, and meat are preserved through these methods.
Q.NO.9: What
is attitude?
Ans: Our behavior towards some idea or event is
attitude. Science has changed our attitude. It has made us open-minded. We
accept the ideas which are based on some reason.
Q.NO.10: What
are superstitions?
Ans:
Our false fears about good luck or bad luck are superstitions.
Superstitious people believe in black cats, broken mirrors, and no.13.
Q.NO.11: How
has science made us open-minded?
Ans:
Science has made us open-minded. We do not believe in false ideas. It
has made us open-minded. We accept ideas that are based on some
reason.
Q.NO.12. How has the scientific method helped us in
our fight against disease? What was the
average age of man in the past and what is the recent average age of man?
ANSWER: In
the past, most babies died soon after their birth. The people suffered
from different diseases. But now babies are born in hospitals. Man’s average
age was 28 years which is now almost doubled.
Q.NO.13. What is the method of dehydration for
preserving food?
ANSWER: In
this method, all water from food is dried so that germs may not grow in it. Milk, eggs,
potatoes, and meat are preserved through this method.
Q.NO.14. How did thrifty housewives preserve food?
ANSWER: In the past, people could only eat fresh food. They could eat off-season food by drying,
pickling, canning, and salting.
Q.NO.15. What changes according to the writer have
occurred in our eating habits?
ANSWER: In
the past, people could not eat a variety of food but today we can get fresh
food anywhere in the world. We can eat a variety of food.
Q.NO.16. How did epidemics cause destruction in the
past?
ANSWER: In
the past, once a disease started, spread to the whole community. So, many people died due to Black Death, flu, Smallpox, measles, whooping cough,
scarlet fever, yellow fever, and malaria.
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