TA 9 - Unit 10, 11

Mother Earth _____ us with air to breathe, water to drink and food to eat.

• keeps

• protects

• provides

• produces

_____ animals can cause ecological imbalances in Earth’s ecology.

• Chasing

• Preserving

• Hunting

• Grazing

To keep the ecologies on Earth in _____, we need to protect natural resources.

• reserve

• balance

• good

• protection

One way to _____ people’s awareness of the need to protect our Earth is to follow the 3Rs.

• rise

• preserve

• protect

• raise

Many human activities cause _____, which is also called habitat destruction.

• climate change

• habitat loss

• ecological balance

• global warming

Orange trees and cactuses are both flowering plants, _____ have seeds that grow flowers.

• who

• which

• that

• what

A naturalist, _____ studies the natural world, often makes observations of the relationships between organisms and their environment.

• that

• which

• who

• what

Humans are cutting down too many trees on Earth, _____ lungs are jungles and forests.

• whose

• which

• who

• that

The cycle of seasons brings major changes, _____ requires animals to adapt.

• whose

• that

• which

• who

Scientists use the Hubble Space Telescope, _____ began orbiting Earth in 1990, to observe and take pictures of planets.

• whose

• that

• who

• which