Some arthropods have special excretory structures, and crustaceans are, like insects, arthropods. Given these facts, crustaceans and insects have what special structures among the following options: - the eyes - a cuticle - internal - excretory - invisible - Chlorophyll - fur and fat - muscled
excretory

(Question)
Streams may start with runoff or water seeping out of a spring, and sulfur occurs native in the vicinity of volcanoes and hot springs. Given these facts, streams may start with runoff seeping out of water containing what among the following options: - chemicals - Nutrients - Nitrous oxide - Helium - Lithium - Sulfur - soil - Sediment
(Answer)
Sulfur

Ques: Lungs are used for breathing air by land animals, and african Elephants are the biggest land animals. Given these facts, how do african elephants breathe among the following options: - with ears - with skin - survive - four limbs - with lungs - Pituitary gland - with tusk - Heart rate
Ans: with lungs

(Q).
Air pollution harms the respiratory and circulatory systems, and an example of an air pollution reaction is the production of photochemical smog. Given these facts, what affects the respiratory and circulatory systems in the body among the following options: - HIV - sulfur - smog - stress - fever - sweat - heat - tar
(A).
smog

Ques:Adrought can change the color of an environment from green to brown, and too little rain causes a drought. Given these facts, what can change the color of an environment from green to brown among the following options: - harmful substances - clouds - Greenhouse gasses - blizzards - deforestation - Greenhouse gases - blue skies - too little rain

Ans:too little rain

Unequal heating of Earth 's surface by the Sun causes global wind patterns, and wind causes a distortion of the water application pattern. Given these facts, unequal heating of Earth 's surface by the Sun causes a distortion of the what among the following options: - water application pattern - electromagnetic energy - degrees celcius - degrees Celsius - wavelengths and photons - the environment - kinetic energy - Inches or fractions of inches.
water application pattern