Question 1

the greenhouse effect

is caused by pollution released into the atmosphere
does not occur naturally
is a naturally occurring process
needs to be reversed to save the planet

question 2

which of the following is a result of the greenhouse effect?

the greenhouse effect is causing the sea level to rise.
the greenhouse effect is melting the polar ice caps.
the greenhouse effect keeps the earth from becoming too hot during the day and too cold at night.
the greenhouse effect is ruining our environment.

question 3

the greenhouse effect can best be compared to

a car with its windows closed parked in the sun
a person lying on a sunny beach
steam coming off a pot of boiling water
heat coming off a fire

Many birth-control pills release a constant amount of synthetic estradiols and progesterone for 21 days, followed by 7 days when no hormones are ingested. which of the following statements most accurately describes the effects of birth-control pills? -birth-control pills maintain constant levels of estrogens and/or progesterone so there is no surge in lh and ovulation does not occur.-birth-control pills inhibit the development of the uterine lining so implantation of a fertilized oocyte cannot occur.-birth-control pills maintain constant levels of estrogens and/or progesterones and mask the release of the oocyte from the follicle.-the 7 days with no hormones does not allow a thick enough uterine lining to form so a fertilized oocyte cannot implant.