PTE (Listening) Select Missing Word - 2

The direction says that the recording is about solar energy. The talk goes on to state that the amount of solar energy a place receives depends upon its distance from the equator. A point at or near the equator receives the highest amount of energy due to greater exposure to the sun arising out of the Earth's axial tilt.

The answer is very easy to derive from the last sentence: Remote desktop applications offer a variety of features. Note that the word “applications” has already been used in the same sentence.

The direction says that the recording is about origin of life, which stated off as assembly of simple cells and progressed through self-replicating molecules.

The purpose of recycling is conservation of water instead of letting it flow into water sources such as rivers. Sometimes the purpose could even be letting it into the river to increase its flow.