The two diagrams illustrate the main parts of a hot air balloon and indicate how it ascends and descends in flight. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

These diagrams demonstrate how the hot

air

balloon rises and falls.

Overall

, It's clear that there are some stages in the process, beginning with

open

Replace the word

opening

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the gas tanks in ascending and

end

Wrong verb form

ending

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it in descending.

According to

the

diagrams

Add a comma

,diagrams

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the first step after the passengers ride is opening the gas tanks and the

air

is heated in

burner

Correct article usage

a burner

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which is located under the balloon envelope

next

that the hot

air

transfer

Replace the word

transferred

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up

Change preposition

apply

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by the valve cord and

hence

the balloon is raising The

second

stage

is descend

Change the verb form

is descended

is descending

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in

Change preposition

apply

show examples

which

it

Correct pronoun usage

apply

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occurs three main steps.

first

Add a comma

,first

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the valve opened after that the

air

comes out and it became cooler because the gas tank is closing so no

air

to heat