EVERYDAY SCIENCE

SCIENCE

ENVIRONMENTAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a threat to coral reefs?
A
oils spills
B
sewage
C
pesticides
D
all of the above
Explanation: 

Detailed explanation-1: -Coral reefs face many threats from local sources, including: Physical damage or destruction from coastal development, dredging, quarrying, destructive fishing practices and gear, boat anchors and groundings, and recreational misuse (touching or removing corals).

Detailed explanation-2: -Pollution, overfishing, destructive fishing practices using dynamite or cyanide, collecting live corals for the aquarium market, mining coral for building materials, and a warming climate are some of the many ways that people damage reefs all around the world every day.

Detailed explanation-3: -Despite their importance, warming waters, pollution, ocean acidification, overfishing, and physical destruction are killing coral reefs around the world.

Detailed explanation-4: -Some threats are natural, such as diseases, predators, and storms. Other threats are caused by people, including pollution, sedimentation, unsustainable fishing practices, and climate change, which is raising ocean temperatures and causing ocean acidification.

Detailed explanation-5: -“Zooplankton are critical to marine ecosystems. They’re the insects of the sea and provide food for many marine animals, from small fish to large whales. They’re also an important component of the coral reef food web, providing food for the corals themselves.

There is 1 question to complete.