In this biome there is very little vegetation, the plants have spines instead of leaves to reduce water loss and many animals are nocturnal. Which one is it?
It is Hot Desert.
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15
Let's speak! Explain three ways of saving forests.
1. Not wasting too many paper. 2. Using recycled paper. 3. Supporting forest conservation.
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15
Let's speak! What is deforestation?
It is the action of cutting down too many forests (trees) to grow crops for the human population.
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15
Let's speak! What is overfishing?
Overfishing is catching fish more quickly than they can reproduce, so the fish populations decrease.
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15
Name one common feature between cold desert and hot desert.
There is very little vegetation.
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seesaw
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gift
Win 5 points!
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fairy
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baam
Lose 20 points!
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15
What is the concentration of dissolved salts?
It is salinity.
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15
Who are the producers in a marine ecosystem?
The producers are phytoplankton and algae.
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seesaw
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magnet
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rocket
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thief
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15
What is this?
This is a food chain.
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25
Explain at least two reasons why we need to control human activities to protect our planet.
To avoid: 1.Animal and plant's extinctions. 2. Natural resource's exhaustions. 3. Too much air and water's pollution. 4. Covering all the land with rubbish.
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15
What type of ecosystem are lakes, rivers, marshes and estuaries?
Freshwater ecosystems.
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thief
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rocket
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shark
Other team loses 20 points!
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banana
Go to last place!
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15
What is an ecosystem?
An ecosystem is all of the living things that live, feed, reproduce and interact with the other living things and with the physical environment.
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15
Let's speak! What is pollution?
Pollution is the energy production from fossil fuels and industrial activities that damage the air and water.