HELP I NEED THE THE ANSWER ASAP I AM IN A RUSH Marissa made a study chart about human-induced changes to the environment. Environmental Changes Caused by Humans X Y Results from introducing harmful substances into the environment Example: oil spill Results from natural areas being cleared and replaced by human development Example: deforestation Which headings best complete the chart? Group of answer choices X: Habitat Destruction Y: Pollution X: Long-Term Changes Y: Short-Term Changes X: Short-Term Changes Y: Long-Term Changes X: Pollution Y: Habitat Destruction

There are main groups in the modern periodic table of elements

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

Which sample at stp has the same number of atoms as 18 liters of ne at stp