Science 9 Periodical Test

It is the most violent and explosive type of eruption. It is caused by the build-up of viscous magma and dissolved gases:

• Hawaiian eruption

• Vulcanian eruption

• Strombolian eruption

• Plinian eruption

This type of volcanic eruption is the least violent type with highly fluid or runny lava flowing out of volcano's vent:

• Hawaiian eruption

• Vulcanian eruption

• Strombolian eruption

• Plinian eruption

These are series of water waves caused by the displacement of large volume of water:

• Blasts

• Gases

• Lahar

• Tsunami

How does latitude affect climate:

• The higher the latitude, the colder the climate.

• The higher the latitude, the warmer the climate.

• The lower the latitude, the colder the climate

• The lower the latitude, there would be no climate.

Which of the following statements describes global warming?

• I. It describes warming of the entire planet

• II. It is the long-term average condition of the atmosphere

• III. It is the long-term average increase in planet's temperature

• IV. it describes the average condition of a specific areas or regions

The following are factors that affect the climate except:

• Distance from the equator

• Distance from the sea

• Direction of prevailing winds.

• Gravity

When arranged from the coolest to the hottest, the star colors are__________ .

• blue, yellow, red, orange

• red, yellow, blue, yellow

• red, orange, yellow, blue

• yellow, orange, red, blue.

Which describes the nuclear reaction happening inside stars?

• nuclear fission of hydrogen ions and helium

• nuclear fission of helium and hydrogen ions

• hydrogen fusion to form helium, releasing energy

• breakdown of helium to form hydrogen ions, releasing energy

The sun is just one of the many stars in the Milky way. What type of star is the sun?

• a yellow star

• a blue star

• a red star

• a white dwarf.

How many constellations are recognized by the International Astronomical Union?

• 44

• 88

• 500

• 1000