PLEASE ANSWER WITH VALID SOLUTIONS BASED ON NCERT, CLASS 9. FAKE ANSWERS WILL BE REPORTED!

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.