Question 9
agricultural runoff is polluting the chang jiang in china. what effect does the flow of large amounts of fertilizer and sewage have on the river?
a
it encourages germs to grow in the river, causing people and animals that drink the river water to become sick.

b
it causes large plants to grow thickly along the shore of the river, preventing animals and people from accessing the river.

c
it settles on the river bottom in thick, sludgy layers, making the river too shallow for commercial and recreational boats to navigate.

d
it causes algae and plants to grow and cover the surface of the water, blocking sunlight and killing plants and animals that live underneath.

D

Explanation:

This will cause plants to grow and block sunlight and killing some other type of plants and a whole lot of animals that live underneath the water.

new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.