What is the purpose of the liquid paraffin in Tube A? Tick one box.
To prevent evaporation
To stop air getting in
To stop the temperature
going up
To stop water getting in?

Which is not a characteristic of the animal kingdom? a. they include both vertebrates and invertebrates b. their skin is covered with hair or fur c. they are heterotrophs d. they are eukaryotic

Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d