Answer:
True
Explanation:
Finding tropical fossils in now-cold places is evidence for climate change. This indicates that the site at which the fossils were found once had a tropical climate.
Answer:
C) The compound is largely ionic with A as the cation.
Explanation:
Pulings proposed the method to determine if the compound is ionic in nature or covalent in nature , by finding the difference between the electronegativity of the respective cation and anion .
The ion with higher electronegativity is the anion and the ion with lower electronegativity is the cation.
The electronegativity difference above 1.7 make the compound ionic in nature.
Hence, from the question ,
A is the cation and B is the anion.
And the electronegativity difference above 1.7 so the compound is ionic in nature.
Answer:
1 and 4
Explanation:
in both pictures the temperature is cooling down
Monomers and polymers
Most large biological molecules are polymers, long chains made up of repeating molecular subunits, or building blocks, called monomers.