All plants have a characteristic life cycle that includes alternation of generations, and alternation of generation is typical of ferns and Bryophyta. Given these facts, what are plants among the following options: - Trees - dirt - plants - ferns - rocks - food - edible - bacteria
ferns

Mechanical weathering is when rocks are broken down by mechanical means, and sediment, and sedimentary rock, is made of particles broken down from other rocks. Given these facts, mechanical weathering produces among the following options: - Sand dollars - calcite - homogenous - Sediment - soft soil - rainfall - cactuses - movement
Sediment

Q: Plastics are made from petroleum and produce toxic waste, and petroleum is a fossil fuel . Given these facts, what is something made from fossil fuel among the following options: - Wood - cigarettes - vehicles - gasoline - Fertilizer - Plastic - Cotton fabric - Fuel cells
A: Plastic

Question: Hurricanes convert heat energy into mechanical energy, and hurricanes A hurricane is a type of tropical cyclone. Given these facts, what converts heat energy into mechanical energy among the following options: - animal transport - kinetic energy - all animals - dangerous - an engine - objects that have mass - tropical cyclones - electricity
Answer: tropical cyclones

*Question*
Some animals' fur grows thicker for staying warm in the winter, and winter is snow, winter is Christmas. Given these facts, why do some animals grow thicker fur around Christmas in the Northern hemisphere among the following options: - overheat - protect them - stay warm - climate - adding heat - warm other animals - stay cool - sun's heat
**Answer**
stay warm

(Q).
Lakes are formed by precipitation and runoff, and for example, Lake Tahoe is a huge lake originating from mountain stream runoff. Given these facts, what does Lake Tahoe originate from among the following options: - hydrogen and oxygen - It's manmade - An ocean - tectonic plates coliding - A hurricane - A mountain stream - Water expanding - body water
(A).
A mountain stream