Science

Which of the following rocks originated from the solidified magma?

• A. Igneous

• B. Magnetic

• C. Metamorphic

• D. Sedimentary

Which mineral is most abundant on the Earth’s surface?

• A. Coal

• B. Fieldspar

• C. Olivine

• D. Quartz

Which term best describes the type of weathering that occurs when oxygen reacts with iron in rocks, changing their chemical composition?

• A. Frost Wedging

• B. Hydrolysis

• C. Mechanical Weathering

• D. Oxidation

Which of the following is a possible explanation for the formation of caves in Palawan?

• A. Oxygen reacted with the iron in rocks, changing their chemical composition.

• B. Water froze and expanded in rocks cracks, causing the rocks to split.

• C. Acid precipitation reacted with and dissolved the limestone.

• D. Animal burrows enlarged over time and solidified into rocks.

In some tropical areas, soil becomes red. What is the compound in soil that makes it red?

• A. Carbon Dioxide

• B. Iron Oxide

• C. Diatomic Nitrogen

• D. Sulfur Hydroxide

John Discovered some maggots when he passed by a dead bird. What type of organism is the maggot?

• A. Autotroph

• B. Heterotroph

• C. Carnivore

• D. Herbivore

Which of the following levels of taxonomic classification has the least degree of similarity among its members?

• A. Family

• B. Genus

• C. Order

• D. Phylum

Which of the following is exhibited in a mitotic cell division?

• A. Occurrence of the two cell divisions

• B. Production of haploid cells

• C. Occurrence of one cell division

• D. Overlapping of paired chromatics

Which of the following is TRUE?

• A. The number of protons and neutrons in the nucleus is always equal for all atoms of a certain isotope.

• B. An ion is formed by changing the number of protons in an atom.

• C. An ion is positively charged atom.

• D. Addition of protons determines the charge of an atom.

Who does the most work to a 2-kg box?

• A. A man carrying the box to a place 2 kilometers away and then bringing it back.

• B. A car pulling the box 1 km away.

• C. Two people helping each other carry the box 500 meters away.

• D. A person who dropped the box down a 3-km cliff.