EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Methane gas would pollute the ocean environment as shoreline organisms begin to die and decay.
|
|
|
Alteration in ocean salt levels would cause loss of species and unbalanced populations in marine food webs
|
|
|
Nonrenewable resources in the ocean environment would become depleted and upset the ecosystem’s balance.
|
|
|
Increased levels of salts and minerals would result in overpopulation of marine bivalves due to strengthened shells.
|
Detailed explanation-1: -Salt water is an abundant resource but unusable for irrigation and drinking. As demands on freshwater sources increase, the use of desalination processes to remove salt from ocean water is increasing. A concern of desalinating water is the large amounts of recovered salts that are returned to the ocean.
Detailed explanation-2: -Desalination has the potential to increase fossil fuel dependence, increase greenhouse gas emissions, and exacerbate climate change if renewable energy sources are not used for freshwater production. Desalination surface water intakes are a huge threat to marine life.
Detailed explanation-3: -Ethanol is a domestically produced alternative fuel most commonly made from corn. It is also made from cellulosic feedstocks, such as crop residues and wood-though this is not as common.
Detailed explanation-4: -Whaling was a very profitable profession until whale populations crashed. The global community came together to enact a ban on whaling. However, Japan and Norway have not agreed to stop whaling.