Question

1. matching- match the following to positive or negative outcome on the ecosystem.

adding oil to the waterways
cutting down trees
replanting trees
using gas made of sugar and corn
using electric panels on housing

1. what is the most efficient way to clean up an oil spill?

a. setting it on fire
b. using a skimmer
c. drain the ocean
d. using a boat

1. choose 2 ways we can help reduce our ecological footprint?

a throw more trash away
b. recycle old water bottles
c. chopping down more trees
d. cutting off the water when we brush our teeth

Explanation:

Question 24

To clean up an oil spill, a skimmer (option B) is a device specifically designed to remove oil from water, making it an efficient method. Setting it on fire (A) can cause pollution and harm, draining to the ocean (C) spreads the spill, and using a boat (D) alone isn't a cleaning method.

To reduce ecological footprint, recycling old water bottles (B) reuses materials, reducing waste. Throwing more trash (A), chopping more trees (C), and wasting water (D) all increase the footprint. So B is a correct way (and another could be, e.g., reducing energy use, but from options, B is valid).

Answer:

B. Using a skimmer

Question 25