Global carbon dioxide in the atmosphere is rising by 2.3 parts per million per year (NOAA). In 2017,the US emitted 5.1 billion metric tons (or 11 trillion pounds) of carbon dioxide was added to the atmosphere as a result of energy-related use (USGS). How many of your best trees would we need to plant to negate this amount of CO2 added to the atmosphere in 2017? Show your work.

Populations of blue-winged warblers, a type of bird, migrate south in the winter and return to canadian breeding grounds in the spring. as global temperatures have increased due to climate change, spring has started arriving in the warbler's breeding grounds earlier in the year, before the warblers return. warblers now arrive at their breeding grounds too late to select ideal nesting sites and to feed on important early-spring food sources how are populations of blue-winged warblers most likely to be affected by the earlier arrival of spring? o a. populations will go extinct since the warblers will stop migrating to breeding grounds. b. populations will be unaffected since most species can quickly adapt to effects of climate change. c. populations will increase since warmer temperatures are generally beneficial to survival, d. populations will decline since individuals will be less likely to successfully reproduce, reset next

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these