KHẢO BÀI UNIT 10- GL9

I'm (a)   answering your questions about our planet.

(mong đợi)

There are eight planets in the (a)   , and Earth is the third from the Sun, after Mercury and Venus

(a)   refer to the plants and animals of a particular place

Oceans, seas, rivers, and lakes are different types of (a)   on Earth

The Soviet Union launched Sputnik 1 into (a)   in 1957.

Some examples of (a)   include mountains, grassland, and deserts

In a (a)   , some animals eat other animals and become food for a third group of animals.

A (a)   is often wide and its plants are mostly grass and flowers.

Areas of land to protect animals and plants are called (a)   .

The North and South (a)   are both extremely cold and icy.