Fact 1: Carbon dioxide concentrations in the air have increased over the last decade dramatically. Fact 2: Carbon dioxide is the primary greenhouse gas. Given the two facts above, answer the question "What have increased over the last decade dramatically" with the following options: - gasoline concentrations - Warm air moving into cold air - Greenhouse gases - treehouse gas concentrations - movements in the earth's crust - concentrated orange juices - genetic diversity - greenhouse gas concentrations
greenhouse gas concentrations
------
Fact 1: Alight bulb requires electrical energy to produce light. Fact 2: Black numbers on a white background are easier to see in darkness or bright light. Given the two facts above, answer the question "Bulbs produce electrical energy to what?" with the following options: - reproduce - Change colors - rain or sun shine - adding heat - look at the sun - power up cars - see in darkness - walk through yards
see in darkness
------
Fact 1: All cells share some of the same structures and basic functions. Fact 2: Biological structures are too complex. Given the two facts above, answer the question "What do all cells share?" with the following options: - basic function - Veins and arteries. - exact structure - how they look - energy usage - Electrical energy - types of protein - Chemical energy
basic function
------
Fact 1: If an object is black then that object absorbs all visible light. Fact 2: All ravens are black . Given the two facts above, answer the question "What absorbs all visible light?" with the following options: - Energy. - ravens - bushes - photons - our star - Jellyfish - bamboo - barnacles
ravens
------