An interglacial is a period of time that occurs between ice ages. it’s marked by warmer temperatures and milder climates. during previous interglacials, the co2 levels in the atmosphere were about 280 parts per million (ppm). in 2013, they were approximately 400 ppm. rounding to the nearest percent, what is the percent increase in co2 between these two time periods?
33%
70%
43%
240%

Match the following terms and definitions a region in arkansas defined by the arkansas river in the western part of the state answer 1 a thoroughly dissected area with steep valley walls and narrow floors answer 2 a geographical region of a country or state answer 3 the friendly and generous reception and entertainment of guests, visitors, or strangers answer 4 the branch of knowledge concerned with the production, consumption, and transfer of wealth answer 5 statistical data relating to the population and particular groups within it answer 6 a mountain range in west central arkansas and southeastern oklahoma answer 7 travel for pleasure or business; also the theory and practice of touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tours answer 8 answer all parts of the question.

Heyi am new to are you all americans? ( just want to know , i don't mean any offence ) ?

Como se presentan los personajes de cunshi y su pequeño hijo? describe a cada uno de ellos