Read the following passage and then answer the questions

Chỉ bài section ll
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Section II. Read the following passage and then answer the questions (1.0 pt)
Saving energy means decreasing the amount of energy used while achieving a
similar outcome of end use. Using less energy has lots of benefits - you can save money
and help the environment. Generating energy requires precious natural resources, for
instance coal, oil or gas. Therefore, using less energy helps us to preserve these
resources and make them last longer in the future. There are some tips to save power
which I think are very easy to apply. Firstly, change your travel behaviors, think more
in terms of public transportation, if possible, walk or ride your bicycle instead of taking
the car. Secondly, we should use choose products that come with lightweight packaging
and turn off lights and appliances when you are not using them, use energy-saving light
bulbs. Thirdly, we should reuse plastic bags for shopping and storage. Finally, we
should use a microwave instead of a stove to reheat food and use rechargeable batteries
instead of disposable batteries. It's an easy way to save our planet.
30. Has using less energy lots of benefits?
31. How many tips to save power are there?