How might upward growth of cities be a better choice than outward growth?
a.
upward growth affects less land area than outward growth.
b.
upward growth moderate pollution problems.
c.
upward growth has no limitations.
d.
upward growth has no environmental impact.

Option A, Upward growth affects less land area than outward growth

Explanation:

Upward growth of cities is nothing but the construction of tall building (or vertical development). This causes development of compact cities in which several component of cities are included into a small space due to which land requirement reduces. In other case , cities growing in outward direction (horizontal growth) require large piece of land to accommodate all its components. Thus, upward growth is a better choice as compared to the outward growth in lieu to requirement of lesser land area.

Hence, option A is the correct answer

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)