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A plain, ___________ is flat and wide, is often used for farming.
The desert has unique ___________ that can survive the hot, dry conditions.
The ocean floor, ___________ is covered in sand and rocks, is very deep in some areas.
Tung: Do you want to help me clean up the beach this Saturday?
Duong: I'm not sure. Will it take long?
Tung: Not really. Just an hour or two to pick up trash.
Duong: ___________ It's important to help the environment.
The ocean currents ___________ move through the seas affect the world's climate.
The ___________ regions are the coldest places on Earth, with lots of ice and snow.
Phuong: Let's donate to organizations that save animal habitats.
Hien: I'm not sure if it will make a difference.
Phuong: Every little bit helps. Even small donations can support important projects.
Hien: ___________ I'll donate too!
People around the world must work together to ___________ the Earth for future generations.
The staff at the nature reserve, ___________ work hard every day, keep the area safe from harm.
The soil can ___________ if we keep farming the land without giving it a rest.
Without protection, animals' homes will deteriorate and be lost forever.
Many animals are at risk because of illegal hunting for their fur or horns.
Write the correct pronoun to complete the sentences. Write “x” if not needed.
Activists for nature, love animals, try to stop illegal hunting.
Volcanoes are formed by the movement of tectonic plates, occur in the Earth's lithosphere.
Some park rangers, main job is to protect wildlife, help animals that are injured or sick.
The rainforest is located in the Amazon is the largest in the world.
Humans, that are the most intelligent species on Earth, have created many technologies.
The discoveries who humans have made, such as the structure of DNA, have advanced science.
They are home to evergreen trees and various animals like wolves, foxes, and some other.
a. Zoe: Don't worry, we can go early in the morning to avoid that.
b. Mia: Good idea! We'll have the place mostly to ourselves.
c. Mia: I'm really excited about the trip, but I hope it's not too crowded.
a. Minh: It must be amazing to see one hunting.
b. Kien: They are! Orcas hunt in groups, and they eat fish and seals.
c. Minh: I saw pictures of orcas in the South Pole. They look huge!
a. Ryan: Did you study the different layers of the Earth?
b. Ryan: Don't forget that the mantle is the thickest layer!
c. Daniel: Yes, I remember the crust, mantle, outer core, and inner core.
Amphibians are animals (1) _______ live both in water and on land. These animals typically lay their eggs in water. After hatching, the young amphibians live in the water, where they breathe through gills like fish. As they grow, they (2) _______ lungs, and their gills disappear, allowing them to live on land. Amphibians can also breathe through their skin.
Amphibians, such as frogs, are important to the environment and can be helpful to humans. (3) _______ the habitat of frogs becomes unhealthy, the frogs may get sick or disappear. A large number of sick frogs can (4) _______ that the environment is also becoming unhealthy for humans, as well as for (5) _______ species.
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