How does carbon dioxide affect the atmosphere? a
Over time it causes the sun to shine more brightly and increases the temperature.
b
Over time it blocks sunlight and is decreasing Earth's temperature.
c
Over time it holds in more of the suns heat, increasing the temperature of the planet.
d
It does not affect the temperature of the atmosphere.

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

How does photosynthesis show the conservation of mass and energy?

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.