Coast Gateway 1

I happen when the waves don't have enough energy to carry sediment

• Deposition
• Erosion
• Swash
• Backwash

Which of the following statements is not true about coasts?

• Coasts are dynamic.

• Coasts are not suitable for residential purposes.

• Coasts are known for their aesthetic factor.

• Coastal environment is the result of interactions between land (lithosphere), water (hydrosphere), air (atmosphere) and living things (biosphere).

Which of the following is not a physical factor affecting coastal environment?

• Geology

• Tides

• Coral Reefs ecosystem

• Fishing activities

Waves are generated when there is a transfer of energy from ______________ to _________________.

• air; water in the sea

• moving air, water in the sea

• air, water surface

• moving air; water surface

_____________ is the horizontal distance from crest to crest or trough to trough, while __________ is the vertical distance between crest and trough.

• Wave length; wave height

• wave length; wave frequency

• wave height; wave length

• wave height; wave frequency

Which of the statements is true?

• The faster the wind blows, the lower the wave energy is.

• The longer the wind blows, the smaller the waves are.

• The greater the fetch, the more energy the waves have.

• The greater the wind strength, the lower the wave energy.

Which of the statements is not true about waves?

• Waves in the open ocean have a long wave length and a low wave height.

• Water particles in the ocean move in an orbit, a motion that rapidly decreases with the depth.

• As waves move into shallower water, the base of waves starts to slow down due to friction resulting in wave height to increase and wave length to decrease.

• Nearest to the coastline, the wave crest becomes gentle and hence does not break onto the coast.

What is a coast?

• The part of land ajoining the sea
• Where rivers live
• The part of land ajoining a rive
• A coast

Where are coasts located around the world?

• On the edge of the continents
• At every latitude 10 degrees 
• In Australia
• South America, Antarctica, Australia, Africa, North America

What is deposition?

• When waves lose energy and drop sediment along the coast.

• The wearing away of land by water or wind.

• The movement of sediment along the beach.

• The distance that the wind has traveled over water.