economic activity involving processing of raw materials and manufacture of goods.

Existing or occurring at the beginning. first letter of name or word. To authorize something by writing your initials.

unwelcome or harmful matter. Some things difficult to deal with or causes troubles.

To respond to (e.g. news) in a particular way.

systematic investigation into and study of materials and sources. investigate systematically.

not same as another or each other.

person who reads or who is fond of reading. Easy and simple books to teach people to read.

economic activity involving processing of raw materials and manufacture of goods. Factories or businesses that make certain products.

Extremely or most important and necessary. necessary thing.

constituting result found by dividing total amount. Total of numbers divided by the number of items. amount to or achieve as average rate or amount over period of time.

Things you read (book, magazines and web pages). Process of understanding writing. To take a measurement of a meter (e.g. gas meter).

An event at which you learned something. To gain knowledge by doing things.

Piece of information that is told/given to someone. To communicate using text.

not accurate.

Being suitable and appropriate for an occasion. To fix a problem.