G Which are structures of the excretory system? Select four options.
kidney
spleen
O bladder
esophagus
O ureter
O urethra

The answer are A c e f

the index of refraction of the second medium is higher. i just took the test trust me !

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )

this would be called the responsiveness