Does Gray Matter?

What is the primary role of micro-organisms in the process of recycling materials in the environment?

• Causing pollution and environmental damage
• Creating new materials from scratch
• Preventing the natural decomposition process
• Breaking down organic matter and releasing nutrients

What is the primary purpose of a trade union?

• To protect and promote the interests of their members
• To organize social events for members
• To lobby for tax cuts for businesses
• To provide free healthcare to members

What is the Roman numeral equivalent of the Arabic numeral 489?

"Arjun, please close the door quietly." What type of sentence is this?

• Interrogative

• Exclamatory

• Declarative

• Imperative

What is one of the major problems associated with deforestation?

• Loss of biodiversity and habitat destruction
• Increase in biodiversity and habitat preservation
• Reduction in greenhouse gas emissions
• Promotion of wildlife conservation

Which verb correctly completes the sentence: "Mia, Scarlett, and Benjamin ___ excited about the upcoming field trip."

• were

• is

• are

• be

What is the primary function of the human heart?

• Pumping oxygen into the lungs

• To regulate body temperature
• Filtering waste materials from the blood

• Pumping blood throughout the body

James, Rohan, and Avery are playing with a bag of colored marbles. The ratio of red to blue marbles is 3:5. If there are 24 red marbles, how many blue marbles are there?

In ancient Greece, who had the right to participate in the democratic process?

• Male citizens
• Only aristocrats

• Men and women

• Men and women

Punctuate the sentence accordingly.

she had three goals for the year travel more learn a new language and start a blog