Science 9

It happens when there is removing or clearing of forest to include cutting of all trees, mostly for agricultural or urban use.

• Eutrophication

• Acid Rain Precipitation

• Water Pollution

• Deforestation

A volcano that may erupt again at some time in the distant future is:

• Active

• Explosive

• Dormant

• Extinct

What is the waste product of photosynthesis?

• Carbon Dioxide

• Chlorophyll

• Oxygen

• Glucose

Some endangered species of plant in tropical rain forest may be sources of:

• Fossil fuel

• Medicine

• Hazardous Waste

• Over harvesting

A branch of science that deals with the DNA and how traits are passed from one generation to another.

• Genetics

• Physics

• Colonoscopy

• Biopsy

When you cut an electric copper wire, what force of attraction is broken?

• Metallic Bond

• Ionic Bond

• Covalent Bond

• Molecular Bond

Plants are considered as food makers. In which of the following cells or organelles does photosynthesis occur?

• Ribosome

• Chlorophyll

• Chloroplast

• Mitochondrion

Which blood cells is responsible for the absorption of oxygen in the blood?

• Red Blood Cells

• White Blood Cells

• Bacteria

• Platelets

A digestive disorder in which stomach flows back up into the esophagus causing discomfort, pain, and damage to the esophageal lining

• Sore throat

• Ulcer

• Acid reflux

• Mouth cancer

These are saturated hydrocarbons with only single bonds between carbon atoms.

• Polymers

• Aromatic compound

• Alkenes

• Alkanes