Fact 1: Algae have varied life cycles. Fact 2: Algae Algae Green algae are the simplest of green plants. Given the two facts above, answer the question "What do the simplest of green plants have?" with the following options: - varied life cycles - spinal cords - backbones - Chemical energy - absorb light energy - Chlorophyll - lungs - photosynthesis
varied life cycles

(Question)
Fact 1: An electron microscope is used for seeing very small objects by making them appear bigger. Fact 2: Electron microscopes use a beam of electrons as their source of illumination. Given the two facts above, answer the question "To make very small objects appear bigger, one can use what instead of light for illumination?" with the following options: - electricity - electron beam - by indirect light - reflecting light - photons - Electrical energy - heat energy - mirrors
(Answer)
electron beam

Ques: Fact 1: Vinegar can cause harm to the eyes. Fact 2: It is this bacteria which turns alcohol into acetic acid, the main component of vinegar. Given the two facts above, answer the question "what can cause harm to the eyes?" with the following options: - hypothyroidism - acetic acid - juice - water - Pesticides - heating liquids - light - rays or beams
Ans: acetic acid

(Q).
Fact 1: Fanning a fire increases the oxygen near the fire. Fact 2: Fire needs oxygen to continue burning. Given the two facts above, answer the question "What keeps a fire burning?" with the following options: - energy - heat - Covering it with dirt - sun's heat - Removing fuel - power - fanning - Dousing it with water
(A).
fanning

Ques:Fact 1: Energy is used for heating a building by a heating system. Fact 2: Solar energy is the energy in the sun's rays. Given the two facts above, answer the question "What can be used for heating a building by a heating system?" with the following options: - the Sun's rays - peachleaf willow - engines - oxygen - photosynthesis - photons - air - hydrogen and oxygen

Ans:the Sun's rays

Fact 1: The color of leaves on deciduous trees usually changes in the autumn season. Fact 2: Common deciduous trees are the oak, elm and beech. Given the two facts above, answer the question "Which tree's leaves change color in autumn" with the following options: - Fir - wind - Palm - blue - elms - Oak - Ficus - Aves
Oak