BIOLOGY
Mangroves are plants that are especially adapted to grow along the tropical coastal areas. In particular, mangroves have modified roots called pneumatophores, which are observed to shoot upwards from the ground. What is the function of pneumatophores?
a. Habitat for fishes and other animals
b. Release excess temperature
c. Expel accumulated salt from seawater
d. Exchange gasses due to waterlogged soil
e. Added support with the changes of the tides
d. Exchange gasses due to waterlogged soil
In which phase of matter are the forces of interaction between particles strongest?
a. Solid
b. Liquid
c. Gas
d. All of the above have the same interactions
e. The force of interaction between particles do not strongly depend on the phase of matter
a. Solid
Complete the sentence: While blowing a piece of balloon, the pressure inside the balloon is ___ the air pressure outside.
a. the same as
b. smaller than
c. greater than
d. changing with respect to
e. None of the above
c. greater than
What are the two main gases in the Earth’s atmosphere?
a. Nitrogen and oxygen
b. Hydrogen and helium
c. Oxygen and carbon dioxide
d. Carbon dioxide and nitrogen
e. Oxygen and hydrogen
a. Nitrogen and oxygen
Which is the correct order in terms of size (smallest to largest)?
a. International Space Station – Moon – Mars – Saturn
b. International Space Station – Moon – Saturn – Mars
c. Moon – International Space Station – Mars – Saturn
d. Moon – International Space Station – Saturn – Mars
e. Moon – Mars – Saturn – International Space Station
a. International Space Station – Moon – Mars – Saturn
How does air enter the lungs?
a. By positive airflow entering the nostrils
b. By expansion of the lungs
c. By contraction of the diaphragm
d. By differences in the pressure between the lungs
e. By differences in the concentration of oxygen outside and inside the body
d. By differences in the pressure between the lungs
Following are some things you should do to make Som Tum (papaya salad). Which is the step in which chemical changes occur?
a. Grounding garlic and chili to release flavor
b. Dissolving the sugar into the paste
c. Shred the papaya
d. Draining water from papaya
e. Toasting the peanuts
e. Toasting the peanuts
15. Which of the following has the highest thermal conductivity?
A. paper
B. Plastic cup
c. Metal straw
d. bottle
e. pencil
c. Metal straw
Approximately what percent of earthquakes occur at plate boundaries?
a. 10%
b. 25%
c. 50%
d. 75%
e. 90%
e. 90%
Asteroids have their orbits between the planets _______
a. Jupiter & Saturn
b. Mercury& Venus
c. Earth & Mars
d. Venus & Earth
e. Mars & Jupiter
e. Mars & Jupiter
Insulin is a hormone which plays a significant role in diabetes mellitus. The following statements therefore explain the mechanisms of insulin, except which one?
a. Insulin is produced by the islets of Langerhans in the spleen in response to increased glucose in the bloodstream.
b. Insulin enables the transport of glucose from the blood to the liver to be converted and stored as glycogen.
c. Insulin facilitates the uptake of glucose by the muscle to be used as energy.
d. Insulin allows the uptake of fatty acids by the adipose tissue to be converted and stored as triglycerides.
e. All of the above are true.
a. Insulin is produced by the islets of Langerhans in the spleen in response to increased glucose in the bloodstream.
The one at the left is smaller than the one at the right. But they both weigh 70 g. Which of the following statements is FALSE?
a. The one on the left has less volume
b. They both have the same amount of matter in them
c. The one on the right has more mass because it is bigger
d. The one on the left has a higher density
e. None of the above
c. The one on the right has more mass because it is bigger
16. Which of the following fluids is most viscous?
a. soy sauce
b. water
c. honey
d. soup
e. none of the above
c. honey
Which process is used in sewage treatment to kill infectious bacteria?
a. Sedimentation
b. Chlorination
c. Filtration
d. Flotation
e. crystallization
b. Chlorination
In order for a solar eclipse to occur, the Moon must be
a. near new Moon.
b. near first or last quarter.
c. high in the sky.
d. near full Moon.
e. in a retrograde loop.
a. near new Moon.
Which of the following statements is NOT true about bacteria?
a. They cannot be seen with the naked eye.
b. They can be found everywhere.
c. They are living things.
d. They all cause infectious diseases.
e. They form colonies.
d. They all cause infectious diseases.
The air we breathe is composed of nitrogen, oxygen, carbon dioxide, and other gases. Based on this statement, the air we breathe can be BEST characterized as ___.
a. A gas
b. A mixture of gases
c. A compound of gases
d. A pure gas
e. None of the above
b. A mixture of gases
When you speak in a closed space, it is possible to hear yourself back. You hear your echo. Echoes illustrate that sound travels through waves in air. What behavior of waves do echoes illustrate?
a. Diffraction
b. Interference
c. Reflection
d. Refraction
e. None of the above
c. Reflection
Which of the following is an igneous rock?
a. Granite
b. Shale
c. Coal
d. Slate
e. Limestone
a. Granite
The distance between the Earth and the Sun (in million kms.) is _______.
a. 111
b. 121
c. 149
d. 168
e. 199
c. 149
The Gerridae are a family of insects that live on freshwater ponds. They can “walk” on ponds due to _____.
Image credits: By Webrunner - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=10424206
Which of the following best completes the statement?
a. high surface tension of water
b. high density of water
c. small size of the insect
d. low density of the insect
e. none of the above
a. high surface tension of water
Global warming results to _______ .
a. Melting of glaciers
b. Rising of ocean level
c. Sinking of islands
d. All the above
e. None of the above
d. All the above
Imagine a game of tug-of-war where the team on the right loses. What is the direction of the net force as soon as the right team loses?
a. To the left
b. To the right
c. Upwards
d. Downwards
e. There is no net force
b. To the left
Your community is planning on building a new sanitary landfill. Which would be the most important aspect for the environment to consider in locating the landfill?
a. the proximity to an industrial park
b. the accessibility to a major highway
c. the cost of the land
d. the location of the groundwater
e. none of the above
d. the location of the groundwater
The North Star is a part of the constellation
a. Little dipper
b. Orion
c. Big dipper
d. Cassiopeia
e. Aquila
a. Little dipper