Earth's Atmosphere
What effect does increasing carbon dioxide have on global temperatures?
Causes them to rise
Give an example of a renewable energy resource
Solar, wind, geothermal, hydroelectric
Can antibiotics kill viruses?
No
What is the charge of a proton?
Positive
Name two types of energy store.
Thermal, kinetic, chemical, gravitational potential, elastic potential, nuclear, magnetic, electrostatic
What gas do plants use for photosynthesis?
Carbon Dioxide
What is a renewable resource?
A resource that can be replaced naturally
What type of microorganism causes the flu?
Virus
Which subatomic particle has no charge?
Neutron
What is the unit of energy?
Joules
Which gas was most abundant in the early atmosphere?
Carbon Dioxide
Give and example of a non-renewable resource?
fossil fuels
What do vaccines contain?
Small amounts of dead or inactive pathogens
Where are electrons found in an atom?
In shells (energy levels) around the nucleus
What is the law of conservation of energy?
Energy cannot be created or destroyed, only transferred or stored
What is the most abundant gas in Earth’s atmosphere today?
Nitrogen
What is the main use of potable water?
Drinking
Name two ways diseases can be spread.
irborne droplets, contaminated food/water, direct contact, vectors (any two)
What is the atomic number of an element?
The number of protons
What happens to energy that is "wasted"?
It is transferred to the surroundings, usually as heat
How did oxygen first appear in the atmosphere?
Photosynthesis from algae and plants
Give one reason why recycling metals is good for the environment.
Saves energy and reduces mining pollution
How do white blood cells fight infections?
By producing antibodies, engulfing pathogens, or releasing antitoxins
What does the mass number of an atom represent?
The total number of protons and neutrons
What does energy efficiency mean?
How much of the input energy is usefully transferred