Answer: The correct answer is option 3) The amount of matter within the system remains the same and 5) The cycle has a well-defined starting and stopping point.
A closed system can be defined as a system in which there is the only exchange of energy with the surrounding, while no exchange of matter takes place.
In a closed system, the cycle has a well-defined starting and stopping point.
Therefore, the two generalizations which can be made for cycles of matter in a closed system are option 1) and 5)
Oxygen-poor blood goes into the lungs and through the lung capillaries after leaving the heart. It does so to be oxygenated by the lungs. The oxygen in the lungs comes from the air we breath. Once the blood is oxygenated, it goes back into the heart, to be pumped back into our bodies for distribution.
Explanation:
surface of Afghan people crowding airports and clambering on top of planes in the hope of fleeing the Taliban takeover of Afghanistan, politicians and veterans in the U.S. are joining a mounting wave of criticism calling this President Joe Biden's "Saigon moment."
Biden told reporters last month the U.S. troop withdrawal from Afghanistan would not be comparable to what occurred when the capital of South Vietnam fell to the North Vietnamese in late April 1975. But the speed with which the Taliban triggered the collapse of the Afghanistan government and the evacuation of the U.S. Embassy in Kabul has led many to draw those comparisons.
Biden announced in April his administration aimed to finish its planned U.S. troop withdrawal before the end of the summer. As the months ticked past, the Taliban expanded its reach in the country by capturing major provinces and continued to escalate its efforts through the last week.
Over the weekend, the Taliban surrounded Kabul, Afghanistan's capital city, and completed its takeover. U.S. State Department officials said people working in the U.S. Embassy were successfully evacuated to the Hamid Karzai International Airport.
Answer:Comparisons are being drawn between the fall of Saigon in 1975 and the fall of Afghanistan following the recent collapse of the Afghanistan government. Above, Afghan people climb atop a plane as they wait at the Kabul airport in Kabul on Monday after a stunningly swift end to Afghanistan's 20-year war, as thousands of people mobbed the city's airport trying to flee the group's feared hardline brand of Islamist rule.
All living things feed and reperduce
