Question

Archeology has changed a lot
for the past few decades.
Now it pay less attention on treasure
And more for the mysteries of death.


Find error and correct it in each sentence .

Answer 1

Archaeology has changed a lot since the past few decades.

Now it pays less attention on treasure and more on the mysteries of death.

Explanation:

In the first sentence, since is used because we are marking on the time line that archaeology has changed as compared to what time. So, the answer is it has changed since....since marks the time here.

Also, for is used for period of time, and few decades is a time period here, but 'few decades' is used to mark the point in time, as compared to that time, Archaeology has changed. Therefore, since will be used in this sentence.

Sentence 2

Archaeology is a singular, there plural verb will come with it. Therefore, 'pays' is used here. Also, 'more for attention' is wrong, instead, 'more on the mysteries' is correct.

Answer 2

The given short passage can be edited as shown below:

Archaeology has changed substantially  

in/during the past few decades.

Now it pays less attention on treasure

And more on the mysteries of death.

The given passage is from the Chapter Discovering Tut: the Saga Continues by A.R. Williams. These lines mean the focus and methodology of archaeology have changed considerably. Earlier the focus was on treasure hunting buried under earth; but now the focus is on solving mysteries buried in the past.