Read the following passage and fill in each gap with a suitable word based on the information of the passage:
Scientists have identified Hydrogen as another form of renewable energy source. It is the most abundant element in nature. But it does not exist seperately as a gas. It is always combined with other elements, such as with Oxygen to make water. Hydrogen, separated from another element, can be burned as a fuel to produce electricity.
Scientists have (a)____ out that Hydrogen can be (b)____ as renewable energy source. The nature is (c)____ with Hydrogen (d)____ it does not exist separately as gas. Hydrogen and Oxygen (e)____ water.
| Scientists have identified Hydrogen as another form of renewable energy source. It is the most abundant element in nature. But it does not exist seperately as a gas. It is always combined with other elements, such as with Oxygen to make water. Hydrogen, separated from another element, can be burned as a fuel to produce electricity. |
Created: 4 months ago |
Updated: 4 months ago
(a) found (b) used/utilized (c) filled (d) but (e) comprise/make/form
Scientists have (a) found out that Hydrogen can be (b)used/utilized as renewable energy source. The nature is (c) filled with Hydrogen (d) but it does not exist separately as gas. Hydrogen and Oxygen (e) comprise/make/form water.
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