The dietary guidelines for americans promote a minimum of minutes of moderate exercise weekly. 40 80 150 120

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Isolated volcanic peaks on the ocean floor are