Science C. A. T

A microscopic marine algae that gives the ocean a glittering appearance is called _______.

• Phytoplankton

• Marine whale

• Coral reef

Which of the following is a non-renewable resource?

• Wind

• Timber

• geothermal energy

• Petroleum

Blood transfusion is necessary when:

• A person is dehydrated

• A person needs oxygen

• A person loses significant amount of blood

The atomic number of an element is determined by the number of:

An example of a renewable resource is:

• Natural gas

• Solar energy

• Oil

• Coal

Which component of blood is responsible for clotting?

Which of these is a pure substance?

• Salt solution

• Water

• Air

• Gold

Which of these muscles is under voluntary control?

• Heart muscle

• Cardiac muscle

• Skeletal muscle

The smallest particle of an element that retains its chemical properties is called an

Which of the following is NOT an element?

• Oxygen

• Iron

• Water

• Gold