A biological or chemical substance or situation that is dangerous to human beings and the environment
Biosphere
Biology
Biohazard
Bilateral
The passion for collecting books
Cardiologist
Bibliomania
Bioshpere
Binoculars
Of or relating to the heart
Binoculars
Biosphere
Cardiologist
Cardiac
What root means "two"?
Biblio
Bi
Cardio
Bio
What root means "life"?
Bio
Biblio
Cardio
Bi
A story of a person's life written by another person
Biology
Bilateral
Biography
Bibliophile
What root means "heart"?
Biblio
Bi
Cardio
Bio
One who loves books
Bioshpere
Bibliophile
Biology
Cardiac
The part of Earth where life exists
Bibliomania
Binoculars
Biosphere
Biannual
Heart doctor
Cardiologist
Cardiac
Binoculars
Biannual
The written list of all the books used in a report or book
Biannual
Bilateral
Cardiac
Bibliography
Having 2 sides
Bibliophile
Bibliography
Bilateral
Bioshpere
Able to speak 2 languages
Bilingual
Bibliophile
Bibliomania
Biosphere
The scientific study of life
Bibliography
Bilateral
Cardiac
Biology
Optical device with two lenses
Biosphere
Biannual
Bilateral
Binoculars
What root means "book"?
Biblio
Bi
Cardio
Bie
Happening 2 times a year.
Biography
Cardiac
Bibliophile
Biannual