SCIENCE YEAR 4

How do orchid roots typically respond to gravity?

• They grow upwards to reach sunlight.

• They grow sideways to spread out.

• They grow downwards into the soil to get water.

• They grow randomly without a specific direction.

What is the main reason certain plants respond to touch?

• To attract insects for pollination.

• To protect themselves from enemies and the surroundings.

• To absorb more nutrients from the air.

• To help their leaves grow larger.

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Which of these is NOT a requirement for plants to perform photosynthesis?

• Carbon dioxide

• Water

• Oxygen

• Sunlight

What are the two primary products of photosynthesis?

• Carbon dioxide and water

• Oxygen and glucose (starch)

• Sunlight and chlorophyll

• Nutrients and space