Highlights
Enemy Invaders
Lori Polydoros
Science & Nature
environment, animals, plants, ecosystem, habitats, science, conflict resolution
VLL
5
11,675
B2
English
9781792256103
Invasive species harm ecosystems, damage crops, and can cause health and safety issues. Native species have gone extinct and others are in danger. What can be done about these destructive pests?
Word lists coverage
The word and grammar lists are compiled from commercially available resources and English study websites. They are not intended to be authority. Use at your own discretion.| List | Total | Coverage |
|---|---|---|
| Eiken Grade 1 | 3,105 | 1.06% |
| Eiken Grade 2 | 866 | 9.01% |
| Eiken Grade 3 | 900 | 39.22% |
| Eiken Grade 4 | 600 | 43% |
| Eiken Grade 5 | 600 | 41.83% |
| Eiken Grade Pre1 | 2,868 | 3.28% |
| Eiken Grade Pre2 | 1,327 | 16.88% |
| Eiken Grade Pre2+ | 1,562 | 21.06% |
| NDL | 875 | 63.31% |
| NGSL 1 to 1,000 | 1,000 | 62.4% |
| NGSL 1,001 to 2,000 | 1,000 | 29.6% |
| NGSL 2,001 to 3,000 | 801 | 16.48% |
| NGSL Supplemental | 52 | 26.92% |
Grammar lists coverage
The word and grammar lists are compiled from commercially available resources and English study websites. They are not intended to be authority. Use at your own discretion.| List | Total | Unique | Coverage | Unique |
|---|---|---|---|---|
| Eiken Grade Pre1 | 94 | 94 | 0% | 0% |
| Eiken Grade 2 | 123 | 122 | 0% | 0% |
| Eiken Grade Pre2 | 111 | 108 | 0% | 0% |
| Eiken Grade 3 | 48 | 47 | 0% | 0% |
| Eiken Grade 4 | 52 | 49 | 0% | 0% |
| Eiken Grade 5 | 176 | 139 | 0% | 0% |
| A1 | 352 | 316 | 0% | 0% |
| A2 | 949 | 893 | 0% | 0% |
| B1 | 1,126 | 1,106 | 0% | 0% |
| B2 | 775 | 760 | 0% | 0% |
| C1 | 402 | 395 | 0% | 0% |
| C2 | 312 | 308 | 0% | 0% |