Review English question (Only 5 question) :p

A species which serves as an early warning sign that a community or ecosystem is being altered or degraded is called ….

• a keystone species

• a native species

• an invassive species

• a new species

• an indicator species

Conifers have several adaptive features to reduce water loss. Which one of the following is incorrect?

• Needle like leaves        

• thick cuticle

• sunken stomata

• produce strobili

• producing pollen grains

Fertilizer is needed to fertilize plants, but excessive use can result in residual fertilizer being washed away by rainwater, entering irrigation canals, and then collecting in rivers. This phenomenon is called ....

• biomagnification

• nitrification       

• denitrification

• accumulation

• eutrophication

Which classes of animals are endothermic?

• birds and mammals

• mammals and amphibians         

• birds and worms

• reptiles and fish

• amphibians and reptiles

To safely reduce the amount of waste in landfills you can ….

• bury the trash in your backyard

• burn the trash in your backyard

• throw your garbage into a lake

• throw your garbage to the river

• reduce, reuse, and recycle