End of ASSP exam Term 3 - G8

Which diagram represents analog signal

• 
• 

Population explosion refers to the _____.

• estimated world population in 2025

• number of people who live in poverty

• world population in 1810

• increased rate at which the population is growing

Radio waves are an example of a digital signal.

• True

• False

The Moon emits its own light.

• True

• False

Deforestation is the cutting of large areas of forests for human activities.

• True

• False

The global population in 2000 was approximately _____. ( Look at the next diagram then choose the answer )

• 60 billion

• 6.05 billion

• 3 billion

• 1 billion

A ____ occurs when the Moon moves directly between the Sun and Earth and throws a shadow on Earth.

• solar eclipse

• lunar eclipse

• waning gibbous

• waxing gibbous

Sign language and written language are examples of signals used to communicate.

• True

• False

The yearly orbit of Earth around the Sun is called its ____.

• rotation

• ellipse

• revolution

• tilt

Which phase of the moon is shown in this picture ?

• first quarter

• waning crescent

• waxing crescent

• waxing gibbous