A. Tropical rainforest
B. Desert
C. Grassland
D. Acquatic
A. Predation
B. Parasitism
C. Mutualism
D. None of these
A. Dalton
B. Robert Boyle
D. Bohr
D.None of these
A. Boyle
B. Dalton
C. Newton
A. Atoms
B. Ions
C. Formulas
D. Matter
A. Atom
B. Molecule
C. Ion
D. Compound
A. Helium
B. Neon
C. Both ‘a’ and ‘b’
A. Hydrogen
B. Helium
C. Neon
D. Argon
B. Compound
D. Molecule
B. Molecules
C. Compounds
D. Both ‘b’ and ‘c’
A. Molecules
B. Compounds
D. Ions
A. Molecule
C. Element
D. Mixture
A. Physical
B. Chemical
A. Elements
C. Mixtures
A. Formula
B. Symbols
C. Units
A. So
B. Na
C. Sd
D. NA
A. Greeks
B. Egyptians
C. Italians
A. Can be divided
B. Can’t divided
C. Sometimes divided sometimes not
A. Ir
B. I
C. Fe
A. Metals
B. Non-metals