A
What gas is responsible for acid rain?
Sulfur dioxide
What body system includes bones and joints?
Skeletal system
Zap point
-300
What causes day and night on Earth?
Earth’s rotation
What type of lens spreads light rays outwards?
Concave lens
What process produces haploid cells?
Meiosis DJ
What is the density formula?
Mass ÷ volume
What term describes the brightness of a star?
Luminosity
What metal reacts violently with water?
Potassium
lucky strike
500
Steal points
250
What organ breaks down food using enzymes and acid?
Stomach
What type of current always flows in one direction?
Direct current (DC)
What natural disaster is caused by movement of tectonic plates?
Earthquake DJ
What pigment makes plant leaves green?
Chlorophyll