Why do scientist study ice cores Select all that apply
To study Earth's past climates
To study how Earth's climate is changing now
To study how climate typically stays the same
To study how it might change in the future

answer n81.2

the jugular venous disention can be a sigh of problems starting with the heart specificaly the right side. with the evidence pressent he may have a blocage in a vein or artery due to a blood clot forming in the surggery. its a theory