What are the main reasons and sources of the increased co2 levels?

how have levels of carbon dioxide in the atmosphere changed in the past 100 years? give specific quantities from pre-industrial revolution compared to now.

Which statement best explains the difference between weather and climate

Complete the activity titled "comparative urban environments." every city is shaped by different cultural forces. in one to two paragraphs, contrast the culture of two different cities from this activity: new york and buenos aires. what makes these cities stand apart from each other culturally? what is unique about each city’s attitude, language, habits, foods, or architecture?

Which countries were controlled by france at the beginning of world war i? hint: use the map in the lesson to you answer this question. algeria burma cambodia indonesia vietnam