Question

​Our planet is changing every day. These changes are caused, unfortunately, by many human actions and caused by pollution, global warming, emission of large amounts of carbon dioxide into the atmosphere, among other factors.
The main environmental problems are global warming, caused by large emissions of greenhouse effect; depletion of the ozone layer caused by the emission of certain gases in the environment and pollution of soil and air due to greenhouse gases and to contamination of soil due ace dumps. It adds also to decrease and extinction of species due to the destruction of their habitats and the hunting of animals for personal purposes, including the use of their skins to make clothing and their bodies to create different materials.
In conclusion, protecting the environment is everyone's responsibility. The human being must change its behavior since they are putting the future of our planet in dangeour.

Answer 1

Resposta:

1) Their refers to they and modifies the noun.

They overcame their obstacles.

Tradução: Eles superaram seus obstáculos.

2) His refers to and modifies the nouns and.

When he was about thirty years old his hearing began to deteriorate and by the last decade of his life he was almost totally deaf.

Tradução:  

Quando ele tinha cerca de trinta anos, sua audição começou a se deteriorar e, na última década de sua vida, ele estava quase totalmente surdo.

3) Her refers to and modifies the noun.

Helen threw herself into her studies.

Leia mais em Brainly.com.br - https://brainly.com.br/tarefa/16488414#readmore

Explicação:

Answer 2

Gente,tenho uma duvida sobre estte texto,onde fica o verbo to be?