Shadows – What happens next?

The video explains how the sun's movement throughout the day affects cacti. As the sun rises and moves overhead, the cactus blocks less sunlight, causing its shadow to shrink.

What is the primary focus of the initial section of the video?

• The types of cacti found in deserts.

• The environment in which cacti thrive.

• The water retention ability of cacti.

• The growth rate of cacti.

How does the sun's position in the sky affect the cactus?

• It changes the color of the cactus.

• It affects the size of the cactus.

• It influences the amount of sunlight the cactus receives.

• It alters the cactus's growth direction.

What happens to the cactus's shadow as the sun moves directly overhead?

• The shadow changes color.

• The shadow disappears completely.

• The shadow becomes larger.

• The shadow becomes smaller.

Why does the cactus block less sunlight when the sun is directly overhead?

• Because the cactus absorbs more sunlight.

• Because the sun's rays are more direct.

• Because the cactus is taller.

• Because the sun is closer to the earth.

What is the effect of the sun's movement on the cactus's shadow throughout the day?

• The shadow becomes invisible.

• The shadow remains constant.

• The shadow changes direction.

• The shadow changes size.