What does the word “catastrophes” mean?

Correct the the mistakes in the following sentences. Use the future simple and continuous tense.

Don't call me at 10 o'clock. I am going to fly to Spain.

Find the mistake

If (A) you do not understand (B) what were written (C) in the book, you could ask (D) Mr. Pike.

Find one mistake in each following sentence.

If there isn’t enough food, we couldn’t continue our journey.

Write the correct tense or form of the verbs in brackets.

Just a decade ago, cell phones___________ (primarily/ use) for calling people.

In which way does flood affect human health as mentioned in the first paragraph?

Which is not mentioned as a way flood helps maintain the ecosystem functions and biodiversity?

Rewrite each sentence so that is contains the word in capitals.

Harry is one of my friends. (MINE)