Answer: I, iii, vii
Explanation:
because this is the important information needed.
Rally scoring is when a team gets a point when the other team fails to return the ball over the net, or when the ball goes out of bounds, commits an infraction or makes a service error.
1. Air pollution can cause health problem directly to any organism include human, animals, and plants. The pollutant can increase the risk of infection, asthma or COPD in human.
2. If air pollutants are too much, they can be blocking the sun making the plant is harder to get sunlight and can't do photosynthesis. It will make the level of oxygen decreased and amount of carbon dioxide increase.
3. Air pollutant also be able to cause climate changes and make global warming which will cause the temperature of earth increase, melting the ice and increasing the water level.
The dark opening is called the pupil. It allows in light. It gets bigger or smaller depending on how much light is in the room.
Answer:
A variety of peroxide compounds, including carbamide peroxide, hydrogen peroxide, sodium perborate and calcium peroxide, have been used as active ingredients for bleaching materials
Explanation:
