Which of the following statements is NOT true regarding main sequence stars? Red giant stars are part of the main sequence group.

Most stars visible from Earth are main sequence stars.

As surface temperature increases, absolute brightness increases.

Main sequence stars are primarily composed of hydrogen and helium gas.

the answer is d (apex) good luck : ))

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

what subject is this

a few examples of ethical concerns involving genetically engineering of humans include

-privacy of genetically tested people

- potential side effects

-long term effects