Question : Find the part of the given sentence that has an error in it. If there is no error, choose 'No Error'.
We don't know exactly when first stars formed.

Option 1: No Error

Option 2: We don't know

Option 3: stars formed.

Option 4: exactly when first

Question : Find the part of the given sentence that has an error in it. If there is no error, choose 'No error'.
No matter how mountains are formed, they eventually becomes too heavy and succumb to gravity.

Option 1: formed, they eventually becomes

Option 2: no matter how mountains are

Option 3: too heavy and succumb to gravity

Option 4: No error

Question : Find the part of the given sentence that has an error in it. If there is no error, choose 'No error.'
Black holes can has powerful effects on their surroundings.

Option 1: has powerful effects

Option 2: No error

Option 3: on their surroundings

Option 4: black holes can

Question : Find the part of the given sentence that has an error in it. If there is no error, choose 'No Error'.
You can find these books into the extreme corner of this shelf.

Option 1: books into the extreme

Option 2: corner of this shelf.

Option 3: You can find these

Option 4: No Error

Question : Find the part of the given sentence that has an error in it. If there is no error, choose 'No Error'.

Methanol is released from pectin, and is therefore many abundant in fermented fruit.

Option 1: methanol is released from pectin

Option 2: abundant in fermented fruit

Option 3: No Error

Option 4: and is therefore many