Which of these is a mechanism that could lead to a climate tipping point? Group of answer choices

Loss of Polar ice pack

Artic methane release

Disruption of the Indian and West African monsoon systems

All the above

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium

What are some examples of anthropogenic atmospheric particulates?

K12 chemistry unit assessment: chemical bonding, electrostatic forces in ionic bonds hold which of the following together? 1. he atoms in helium gas 2.na+ and br- in nabr 3. fe atoms and localized electrons in iron