Researchers need to be extremely careful when collecting data. They must make sure that their data avoids bias, and account for any possibility of human error as well. They must also make sure that the steps taken to collect this data can be easily repeated for future replication.
Answer:
Waves , tides and currents are powerful agents in developing coastal landforms.
Hope it helps you.
Answer:Russia is probably richer in natural resources than any other country in the world. It has abundant supplies of oil, natural gas, and timber. And valuable minerals, such as copper, diamonds, lead, zinc, bauxite, nickel, tin, mercury, gold and silver. Most of which are located in Siberia and the Far East. Also the sell of these resources gives a major boost to the economy
Answer:
i honestly don't know but i will ask my teacher tomorrow for you