Point out the appropriative preposition to fill the gap in:

These

are the forms of procedure

govern the relations ................... individuals and groups.

Point out the proper

form of the word to fill in the gap:  

Our society has difficulty in _____________ the major environmental

problems.

Point out the proper

form of the word to fill in the gap

D.I. Mendeleyev ..................... thousands of

experiments and calculations.

Point out the proper form of the words to fill in the gap:  

 We understand term  "dimension"  as a

 measurable extent of some kind, such as

____________.

Point out the proper

form of the word to fill in the gap  

Ostap put off__________the decision till he has more information.

rudimentary

If you have had a disagreement about an issue or treated someone

disrespectfully,  

Match the word with it synonym.

advancement  

 How

has research   to be conducted? Point out the CORRECT answer to the question:

Point out   the synonym  of highlighted word : 

The efforts of   chemists enhance knowledge and at the same time

contribute to

the well-being of humanity.