A type of polymer that is heat-hardened, rigid, cross-linked, irreversible, cannot be reshaped.

(a)  

A mixture of smoke and fog

(a)  

Arranged in a highly ordered, repeating pattern, forming a crystal lattice.

(a)  

Most conductive metal.

(a)  

Is an alloy of iron and carbon with the percentage of carbon ranging between 0.5–1.5%.

(a)  

Hottest layer of the atmosphere

(a)  

Macromolecules polymers with a high degree of polymerization

(a)  

Polymers with low degree of polymerization

(a)  

These are air pollutants that are complex mixture of extremely small particles and liquid droplets

(a)  

Layer of atmosphere where the occurrence of earths weather and air pollution takes place.

(a)  

An air pollutant that is produced from complete combustion

(a)  

Percentage of freshwater in the total global water

(a)  

A polymer that is made up of more than one type of monomers

(a)  

Composed of atoms organized in a cube with one atom in each corner and one atom in the center.

(a)  

Air pollutant that are directly emitted to the atmosphere

(a)  

Percentage of ocean in the total global water

(a)  

They are polymers that occur in nature.

(a)  

Greek word amorphos means

(a)  

An atom or a group of atoms associated with each lattice point

(a)  

Air pollutant that is derived from incomplete combustion processes.

(a)  

The smallest repeating unit of the lattice

(a)  

Modified TRUE or False. Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.

Metals can be drawn into wires and hammered into sheets referred to as ductility and permeability.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

Non-ferrous alloys include steel and cast iron.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

Chemical Oxygen Demand (COD) is used when the oxidation process is carried by microorganisms instead of strong oxidizing agent.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

In transpiration process of plants, through the stomatal openings the water is released out as liquid water.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

Metamorphic rocks are formed through the cooling and solidification of magma or lava.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

Evapotranspiration is the combined effect of both evaporation of water from the soil, plants, or water bodies and transpiration from vegetation.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

Igneous rocks are typically formed as a result of compaction and cementation.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

The intrusive igneous rocks are those that are formed inside the earth.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

In rock cycle, the cycle starts with igneous rocks that weather and erode to become sediment.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

Water is composed of two parts hydrogen and one-half part oxygen.

(a)  

Modified TRUE or False (Write TRUE if the statement is correct and if false, correct the underlined word/words to make the statement correct.)

Water exists in three states: Solid (ice), Liquid (water), and Gas (steam).

(a)