Water Cycle

Multiple Choice

If there is 25 Kcal available in the trophic level 3, how much energy is available in the herbivores in trophic level 2?

• 0.25 Kcal

• 2.5 Kcal

• 250 Kcal

• 2500 Kcal

Multiple Choice

If these organisms were arranged in a food pyramid, which organism would have the least amount of total energy available?

• coyote
• insect
• lizard
• shrub

Multiple Choice

How much of the energy in each level of a ecological pyramid gets LOST as heat or used by the organism so that it CANNOT be passed on to the next trophic level?

• 80%

• 90%

• 10%

• 20%

Multiple Choice

Most of the energy in the trophic level below is NOT available to the organisms that eat them. Therefore, the ecosystem can only support the number of organisms that can have enough to eat.

Why can the ecosystem only support small numbers of consumers compared to a large number of producers?

• There is not enough energy available to support more consumers

• There is too much energy available to the consumers

• There is not enough food available for decomposers

• There is not enough sunlight available to support more consumers

Labelling

Label some of the processes and components of the water cycle

Drag labels to their correct position on the image

Condensation

Precipitation

Evaporation

Transpiration

Surface runoff & percolation

Ocean

Multiple Choice

What is the role of trees in the water cycle?

• They release water vapor into the atmosphere through transpiration

• They absorb water vapor directly from the clouds

• They prevent water from evaporating

• They produce water through photosynthesis

Multiple Choice

How does precipitation contribute to the water cycle?

• It increases water vapor in the atmosphere

• It decreases the salinity of oceans

• It replenishes freshwater sources on land

• It leads to the formation of deserts

Multiple Choice

What is rainfall that is not absorbed by soil and travels to the ocean?

• run-off

• transpiration

• precipitation

• evaporation

Multiple Choice

What is the energy source for the water cycle?

• the sun

• water

• the Earth

• the moon

Multiple Choice

What part of the water cycle does this picture show?

• condensation

• precipitation

• evaporation