select all of the elements that would share similar chemical properties, such as reactivity and flammability

The ph of carrots are 5.0 how it is classified a.acidic b.basic c.indicator d.neutral

How have the greenhouse gasses increased from the year 2000 to 2018

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.