Answer:
improving air quality :
1. keep it clean. a clean house may be a healthier house , because good indoor hygiene can greatly cut down on dust and animal dander
2. keep the greenery outdoors
3. change your filters
4. invest in an air purifier
5. let fresh air in
The correct answer is option C "It can be proven in an encyclopedia". Marches and protests against segregation and discrimination occurred during the 1960s, and there is evidence written in encyclopedias to proved it. Most of these marches and protests came from movements created in that time, including the civil rights movement, the student movement, the anti-Vietnam War movement, the women's movement and the gay rights movement.
The writer and her parents were treated with proper hospitality. They were welcomed by doing puja then they were served with fresh and delicious organic food.
Weeping willow trees, which are native to northern China, are beautiful and ... Their width can equal their height, so they can wind up as very large trees. ... With the proper cultivation, they can grow into strong, hardy, beautiful trees. ... and permanence when a prophet in the Book of Ezekiel plants a seed "like a willow
