Font size
WorksheetsQuiz No 1 in Earth Science (Set B)
Total questions: 15
Worksheet time: 8mins
During Hadron Epoch in the Big Bang, universe cooled enough for quarks to bind together and formed protons and neutrons. Collectively, protons and neutrons are called
quarks
hadron
nucleons
neutrino
Which of the following existed first during Big Bang?
matter
energy
time
space
By mass, what percent of the early universe's matter were hydrogen and helium, respectively?
75%, 25%
50%, 50%
25%, 75%
60%, 40%
There wasn't a single star in the universe until about 180 million years after the Big Bang. Once the universe's first stars ignited, the light they unleashed packed enough punch to once again strip electrons from neutral atoms. This phenomenon is called
(a)
Higher orders of life, including humans, had time to evolve. This is comparatively for a reason of
Rocks, which are indicator of age of the Earth, undergo cycle
Genetic modification takes a lot of time before taking effect on the individual
Since the solar system took time to develop, it must also the living organisms that need time to evolve
We have a long-living Sun
Biosphere contains a wide range of organisms, including bacteria, fungi, plants, and animals, that live together as a community. This variety is referred by biologists and ecologists as
ecosystem
biodiversity
ecology
fauna and flora
Which of the following is NOT TRUE of minerals?
They are arranged in three-dimensional patterns
They have definite chemical composition
They are important component of soils
They are formed from organic processes
The ore to become a useable mineral just begins when
it is processed
it mineral undergoes separation from waste rock
it leaves the mine
it is mined out of the source
Dolomite, the "white sand" that was used in Manila Bay Rehabilitation Project was extracted from a mountain in Alcoy, Cebu. What type of mining was applied in getting the dolomite out of the source?
Strip
Open pit
Quarrying
Mountaintop removal
Exploration is the first phase of mining. How many years does it take a mining company in an explorational stage?
1-5 years
3-6 years
6-8 years
8 - more than 10 years
What is the second most abundant metal on Earth, which is the main component of steel?
Nickel
Iron
Chromite
Aluminum
What caused the downtrend of mining activities of gold, iron, and chromite in the country in the early 90's?
higher cost of production
difficulty in finding new ore sites
catastrophic events like earthquake and volcanic eruption
laws enacted by government restricting mining operations
Which government agency is responsible for the monitoring of mining activities in the country?
Philippine Mining Corporation
Commission on Audit
The Congress
Mines and Geosciences Bureau
Rock Salt is a chemical sedimentary rock that forms from the evaporation of ocean, sea or saline lake waters. Which of the following is NOT TRUE about this mineral?
Its mineral name is halide
It is used as seasoning for food
It is used to treat winter highways
It is rarely found at Earth's surface
Intrusive igneous rocks crystallize below Earth's surface, and the slow cooling that occurs there allows large crystals to form. Which of the following is an example of this type of rock?
gabbro
basalt
pumice
andesite
