bonjour, j’ai un exercice en anglais mais je suis bloquée.. merci de m’aider <3

1. the child was young so he couldn’t understand the risk

2.glaciers are melting and ocean are rising because the climate is changing

3. human factors must always be taken into consideration that’s why nuclear plants cannot be totally risk-free

4. The animals couldn’t feed on the vegetation because it was scarce