A C G H
I know because i took this nightmare of a test and almost had a mental breakdown
Answer:
i would say
Burning fossil fuels.
Explanation:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere.
Isotope is the study and application of stable and radioactive isotopes to geological processes and their time scales.
Answer:
diaphragm,cervical cap,male condom, female condom, spermicide foam sponges and film.
Explanation:
unlike other methods of birth control, barrier methods are used only when you have sexual intercourse .
Answer:
Pacific Plate
Explanation:
These islands are volcanic arc formations due to the convergent boundary where the pacific plates subducts under these Indo-Australian plates, so the subducting pacific plate created the Kermadec ridge that runs from north island of New Zealand to Tonga northeast wards. There are several volcanoes that rise from this zone of the sea bed.