LS 2 Science Flashcards
(53 cards)
Which of the following CANNOT be considered a progress in electronics?
(A) from air mail to e-mail
(B) from radio to television
(C) from newspaper to internet
(D) from pencil to manual typewriter
(D) from pencil to manual typewriter
Roger started smoking at the age of 14. One day, he experienced difficulty in breathing. According to his laboratory results, this is due to over-inflation of tiny air sacs in the lungs. His respiratory condition is called
(A) asthma
(B) colds
(C) emphysema
(D) pneumonia
(C) emphysema
Joseph, a high school student, has joined a fraternity known to be using prohibited drugs. Since then, he has incurred frequent absences, shown lack of interest in school, and has been observed with poor hygiene. If there will be more students like Joseph, which of the following might NOT occur?
(A) healthy community
(B) interpersonal conflict
(C) physical violence
(D) school drop-out
(A) healthy community
Which of the following statements is true about the changes in the appearance of the moon?
(A) The moon is getting closer to the earth.
(B) The moon is increasing speed as it rotates.
(C) The moon is physically changing in size and shape as it rotates around the Earth.
(D) The moon is reflecting different amounts of light due to the alignment of the Sun and Earth.
(D) The moon is reflecting different amounts of light due to the alignment of the Sun and Earth.
The farm of Barrio Masaya was infested with rats which fed on their crop of corn. Also, many farmers have been catching snakes to sell their meat in the restaurants. Which of the situations will likely happen in the corn and rat populations over time?
(A) Both populations will increase.
(B) Both populations will stay the same.
(C) The rat population will increase while corn population will decrease.
(D) Corn populations will increase while the rat population will decrease.
(C) The rat population will increase while corn population will decrease.
PAGASA raised Public Storm Warning Signal No. 1 over the province. Which of the following is NOT one of the possible effects of this storm?
(A) Tsunami may be generated.
(B) Some plants may be uprooted.
(C) Rice and corn crops may be affected.
(D) Roofs made of nipa may be damaged.
(A) Tsunami may be generated.
Substance abuse involving our youth is one of the most rampant problems faced by the government today. Which of the following is the best strategy for the early prevention of this problem?
(A) Integrate drug education in the curriculum.
(B) Conduct a barangay drug clearing operation.
(C) Perform an unannounced drug testing to schools.
(D) Increase awareness regarding the matter through media.
(A) Integrate drug education in the curriculum.
Priscilla has a garment shop. Every day she collects a lot of fabric fragments. What is the best thing she could do with them, to help in the proper waste management of the community?
(A) Burn them.
(B) Make cleaning rags out of them.
(C) Use them as compost for the garden.
(D) Collect them and give it to the garbage collector.
(B) Make cleaning rags out of them.
A community living in a coastal area is expected to get their resources through ___________.
(A) mining
(B) hunting
(C) fishing
(D) farming
(C) fishing.
Using the information from the table above, how can Elisa prevent her family members from being victims of foodborne illnesses?
(A) Cook food in advance for a weekly menu.
(B) Cook food according to proper directions.
(C) Set the freezer at lowest on the dial to save electricity.
(D) Allow a sick family member to handle the food service.
(B) Cook food according to proper directions.
Although sex education is already integrated in the curriculum, early pregnancy is one of the major reasons for the increase of drop-out rate in schools. What is the best alternative way to minimize, if not solve this problem?
(A) Promote family planning.
(B) Separate boys from girls in school.
(C) Regulate sex-related posting in social media.
(D) Strengthen values education in the curriculum.
(A) Promote family planning.
The population of the Philippines is projected to soar to 117,260,000 by 2024. An effort to curb this exponential growth of population is RA 10354 informally known as Reproductive Health Law. A NEGATIVE result of overpopulation in the country would be
(A) increased biodiversity
(B) minimized carrying capacity
(C) satisfied basic human needs
(D) overexploited natural resources
(D) overexploited natural resources
Mr. Isidro is planning to build a new house for his family. For the construction of the iron fence, Mr. Isidro must make sure that the constructor will do the following EXCEPT
(A) use galvanized metal
(B) apply protective coating
(C) limit the number of bars
(D) consider the distance from the ground
(C) limit the number of bars.
One of the issues the global community is facing today is the shortage of food, which is caused by various factors such as human activities, natural disasters, and even climatic change. What is the best possible solution to address this issue?
(A) If people will control their activities, they can prevent food shortages.
(B) If people are prepared for climatic change, they can prevent food shortages.
(C) If people were able to manage agricultural land properly, food shortages could be prevented.
(D) If people can predict the natural disasters, they can prepare and store food to prevent food shortages.
(C) If people were able to manage agricultural land properly, food shortages could be prevented.
The Malampaya gas field is a deep-water power reservoir in Palawan, supplying three power plants in the country. It delivers up to 20% of the country’s electricity requirements, using indigenous sources of natural gas. In 2017 the Malampaya gas field was shut down to improve its facility. What might happen to the energy supply of the country if Malampaya runs out of gas?
(A) There may be an increase in the cost of gas.
(B) There will be a shortage of gas supply.
(C) It may be necessary to import gas.
(D) All of the above.
(D) All of the above.
Life is easier and more enjoyable due to faster communication made possible through mobile phones and the internet. What conclusion can be derived from the given statement regarding the new developments in communication technology?
(A) They protect privacy.
(B) They are always reliable.
(C) They destroy relationships.
(B) They are always reliable.
Volcanic eruption is a natural disaster which has been both beneficial and harmful, especially on the economic status of the affected community. What can be deduced from this?
(A) Volcanic eruption has no impact on the economic status of the people in the community.
(B) Volcanic eruption has a great impact on the economic status of the people of the community due to its occurrence.
(C) Volcanic eruption can decrease the economic status of the people in the community because they will be depressed.
(D) Volcanic eruption can increase the economic status of the people in the community, if they reuse volcanic materials.
(D) If there is shortage in energy, then alternative sources of energy should be harnessed.
Animals are classified according to structure of the body, food they eat, type of reproduction and habitat. Which grouping of animals is appropriate according to their habitat?
(A) rat, dog, snake
(B) horse, dolphin, tiger
(C) monkey, tarsier, koala
(D) shark, sea horse, elephant
(C) monkey, tarsier, koala.
Which of the following compounds exhibit ionic bonding?
(A) NaCl
(B) CH3
(C) HCl
(D) H2O
(A) NaCl
The muscular system and skeletal system coordinate to support and move the body. Which structures of the two systems work together to perform their functions?
(A) joints and cartilages
(B) brain and spinal cord
(C) bones and muscles
(D) tendons and ligaments
(C) bones and muscles.
The levels of biological organization are given above. Which of the following is the correct order if they are arranged from smallest to largest?
(A) I, II, III, IV, V
(B) II, IV, V, I, III
(C) III, V, I, II, IV
(D) V, IV, III, II, I
(B) II, IV, V, I, III
The visible light is the only energy that can be seen in the form of color. Which of the following gives the correct arrangement of colors from the most to the least amount of energy they carry?
(A) Blue, green, red, violet
(B) Green, red, violet, blue
(C) Red, green, violet, blue
(D) Violet, blue, green, red
(D) Violet, blue, green, red
In which sequence would the events below happen for a lunar eclipse to occur?
I. When the Sun, Earth, and Moon are exactly or very closely aligned.
II. When the Earth is between the Sun and Moon.
III. Usually when the moon is full.
IV. When the Moon passes directly behind the Earth and into its shadow.
(A) I, II, III, IV
(B) II, III, IV, I
(C) III, I, II, IV
(D) IV, II, III, I
(C) III, I, II, IV
Influenza, pneumonia, tuberculosis, typhoid fever, malaria, and hepatitis are all examples of communicable diseases. Which of the following characteristics best describes communicable diseases?
(A) Communicable diseases are infectious.
(B) Communicable diseases pass from one person to another.
(C) Communicable diseases are diseases caused by nutrient deficiency.
(D) Both B and C
(B) Communicable diseases pass from one person to another.
