What can scientists determine by examining 1,000 year-old pollen trapped in the ground? a. the amount of plants still alive with the same type of pollen. b. what caused you the death of the plants and animals in an area. c. the approximate time a specific plant went extinct. d. what plants once lived in an area.

the only liquid elements at standard temperature and pressure are bromine (br) and mercury (hg). although, elements caesium (cs), rubidium (rb), francium (fr) and gallium (ga) become liquid at or just above room temperature.

explanation:

a) the particles of the chair are strongly held together.

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.