Question

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Answer 1

(v)Your stomach protects itself from being digested by its own enzymes, or burnt by the corrosive hydrochloric acid, by secreting sticky, neutralising mucus that clings to the stomach walls. If this layer becomes damaged in any way it can result in painful and unpleasant stomach ulcers.

(vi)candle clock ,time stick and Hour glass are the devices which were used for measuring time in ancient time before pendulum clocks were made

(vii)On the landscape, freshwater is stored in rivers, lakes, reservoirs, and creeks and streams. Most of the water people use everyday comes from these sources of water on the land surface.

(viii)There are four types of camper toilets that you can choose from, depending on your circumstances and rig:

Traditional gravity flush toilet.

Composting toilet.

Portable camping toilet.

Cassette toilet.

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Answer 2

Answer:

5. our stomach protects its self from bieng digested by its own enzymes , or burnt by tue corrosive hydrochlric acid , by secreting sticky neutralising mucus that clings to the stomach walls .

6 . Candle clock and hour glass .

7 . Ground water and surface water .

8 . Gravity flush toilets .

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