When an environment changes

Question 1

True or false? Habitat loss is one of the biggest threats to wildlife.

• A. True
• B. False

Question 2

After a forest fire, which living things usually return first?

• A. old oak trees
• B. owls that nest in big trees
• C. bears
• D. grasses and small fast-growing plants

Question 3

What is a likely effect of this change: a pond dries up in a drought?

• A. flowers may bloom before the insects that feed on them hatch
• B. woodland birds lose nest sites and many move away
• C. polar bears have less time to hunt seals on the ice
• D. frogs and fish that cannot leave may die

Question 4

True or false? Changes to habitats are always caused by people.

• A. True
• B. False

Question 5

Which kind of animal is most at risk when its habitat changes?

• A. one that can eat only one kind of food and lives in only one place
• B. one that can fly far
• C. one that can live in many places
• D. one that eats many foods

Question 6

What is a likely effect of this change: spring arrives earlier as the climate warms?

• A. woodland birds lose nest sites and many move away
• B. polar bears have less time to hunt seals on the ice
• C. animal homes are split and crossing becomes dangerous
• D. flowers may bloom before the insects that feed on them hatch

Question 7

True or false? Changes to habitats are always caused by people.

• A. True
• B. False

Question 8

Why are wildlife bridges and tunnels built over and under busy roads?

• A. So animals can cross safely between parts of their habitat.
• B. To keep animals in one place.
• C. To give cars more space.
• D. So animals can watch traffic.

Question 9

What is a likely effect of this change: a new road is built through a meadow?

• A. woodland birds lose nest sites and many move away
• B. animal homes are split and crossing becomes dangerous
• C. flowers may bloom before the insects that feed on them hatch
• D. polar bears have less time to hunt seals on the ice

Question 10

True or false? Some animals survive habitat change because they can eat many different foods.

• A. True
• B. False

Question 11

A wetland is drained to build houses. What can the ducks living there do?

• A. live inside the new houses
• B. grow gills
• C. fly to another wetland if one is nearby
• D. turn into land animals overnight

Question 12

What is a likely effect of this change: a pond dries up in a drought?

• A. frogs and fish that cannot leave may die
• B. woodland birds lose nest sites and many move away
• C. flowers may bloom before the insects that feed on them hatch
• D. polar bears have less time to hunt seals on the ice

Question 13

True or false? Plants can walk to a new place when their habitat changes.

• A. True
• B. False

Question 14

Which kind of animal is most at risk when its habitat changes?

• A. one that eats many foods
• B. one that can live in many places
• C. one that can fly far
• D. one that can eat only one kind of food and lives in only one place

Question 15

What is a likely effect of this change: Arctic sea ice melts earlier each spring?

• A. frogs and fish that cannot leave may die
• B. animal homes are split and crossing becomes dangerous
• C. woodland birds lose nest sites and many move away
• D. polar bears have less time to hunt seals on the ice

Question 16

True or false? Changes to habitats are always caused by people.

• A. True
• B. False