1. Which mode of heat transfers is being described in this situation? heat coming from the sun
a.Convection
b.Radiation
c.Conduction
d.None of the above
2. In an atom, the number of protons equals the number of_______________
a.electrons
b.neutrons
c.positrons
d.nucleons
3. Charges are brought about by the transfer of_______
neutrons
nucleons
protons
electrons
4. Which of the following should you do to reduce the effects of global warming?
join car pools
Avoid using disposable items.
Turn off all the appliances when not in use.
all of the above
5. A more accurate way of defining the location of the Philippines in the world map is by__________.
identifying the neighboring bodies of water and countries
measuring its distance in kilometers from Greenwich, England
expressing its absolute location through latitude and longitude
none of the above
6. Which of the following is correct about absolute location?
It is measured from the south or west of a place
It is expressed in terms of latitude and longitude
It is measured from the north or east of a place
It is derived in relation to a reference point
7. Which of the following is true about the Earth?
It has an artificial satellite called the moon.
It makes a complete rotation every 23.5 days.
It is tilted 20.5 degrees to the plane of its orbit.
It makes a complete revolution around the sun in 365.25 days.
8.Which of the following is true about solar eclipse?
Earth's shadow is cast on the moon.
The moon's shadow is cast on Earth.
Earth is between the sun and the moon.
The moon moves into Earth's shadow.
9. Which of the following is incorrect?
Two equinoxes occur in one year
The winter solstice is the shortest day of the year.
The summer solstice is the longest day of the year.
During summer equinox, days are longer than nights.
10. Which of the following is true about tides on Earth?

In most places, high tides occur once a day.
The heights of tides are the same in all places.
During spring tide, the high tide is higher than usual.
The gravitational pull of the sun is the principal cause of tides on Earth.