Which factors have contributed to Earth’s population growth? Choose all answers that are correct.

doubling time

increasing birth rate

increasing death rate

greater birth rate than death rate

search in internet u can get it

the answer is b.) hydrogen bonds between bases.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.