Changes in the pH of soil can cause plants to die, and compost balances the pH of soil. Given these facts, how do you balance the acidity of soil among the following options: - Evaporation - It decreases - composting - heating liquids - food - pruning - drink - dirt
composting

(Question)
Lipids may consist of fatty acids alone, or they may contain other molecules as well, and lipids Lipids are also composed of carbon, oxygen and hydrogen. Given these facts, what can fatty acids be combined with, in addition to carbon and oxygen among the following options: - Sodium - Energy. - glucose - Carbon Dioxide - Fuel cells - Uranium - Hydrogen - Energy
(Answer)
Hydrogen

Ques: Agenerator converts kinetic energy into electrical energy, and water behind a dam has potential energy that can be converted to kinetic energy. Given these facts, a generator is used to turn water behind a what into electrical energy among the following options: - dam - H20 - hot - sewer - pond - gutter - wind - Heat
Ans: dam

(Q).
Wings are part of the exoskeleton and attached to the thorax, and all insects have heads, abdomens, and thoraxes, antennae, six legs, and wings. Given these facts, what have wings that are part of the exoskeleton among the following options: - animals - honeybees - barnacles - mammals - all snakes - all spiders - all insects - all arachnids
(A).
all insects

Ques:An aquatic animal requires great amounts of water to survive, and fish are backboned aquatic animals. Given these facts, what requires great amounts of water to survive among the following options: - bears - cactii - fish - squids - h2o - Whales - Birds - atmosphere

Ans:fish

Shelter is used for protection by animals against weather, and caves or rock overhangs provide shelter. Given these facts, what do animals find protection from when using rock overhangs among the following options: - sun's heat - insects - weather - erosion - rivers - bats - wind - the sun
weather