Air Quality
21% of air is this gas
What is oxygen?
the universal solvent
What is water?
Simple cell division resulting in identical cells for growth
What is mitosis?
An educated guess as to the outcome of an experiment
What is an hypothesis?
Any material used to control pests
What are pesticides?
Most abundant element in air
What is nitrogen?
The addition of water to plants that supplements rain
What is irrigation?
Occurs during reproduction in the formation of gametes (egg and sperm)
What is meiosis?
Draw a conclusion is the __ step of the scientific method
What is the last step?
Controls insects by killing by body contact or ingestion
What are insecticides?
Buildup of heat trapped in the Earth's atmosphere
What is Greenhouse Effect?
Drinkable water is known as this
What is potable?
Humans have this many chromosomes
What is 46?
The 4th step of an experiment
What is experiment?
Controls fungus diseases
What are fungicides?
Automotive gas that cannot be removed with current technology.
Carbon monoxide
Water that flows up the mouth of a river
What is tidal water?
Chromosomes are at both ends of the cell in this stage of mitosis
What is anaphase?
Organize and collect __
What is data?
Any plants growing out of place
What are weeds?
Pale-yellow element that occurs in nature that is present in coal and crude oil
What is sulfur?
Process where water moves from an area of high concentration to an area of low concentration
What is osmosis?
Chromosomes are lined up in the middle in this phase of mitosis
What is metaphase?
The group in the experiment that is kept under normal conditions
What is the control group?
Kill unwanted plants
What are herbicides?