Everyday Science
Everyday Science MCQs With Answers
741 Everyday Science MCQs for CSS, PPSC, FPSC, NTS and entry-test preparation. Take a scored quiz instead →
Why do most plant leaves appear green to the human eye?
ABecause chlorophyll strongly absorbs green light specifically
BBecause plants intentionally produce green pigment for camouflage
CBecause green is the only color of visible light that exists in sunlight
DBecause chlorophyll primarily absorbs red and blue light while reflecting green light
What term describes asexual plant reproduction methods, such as growing a new plant from a cutting, that do not involve seeds?
AFertilization
BGermination only
CVegetative propagation
DPollination
What term describes plants, such as cacti, that have specifically adapted to survive in very dry, arid environments?
AHalophytes only
BHydrophytes
CXerophytes
DEpiphytes only
What horticultural technique involves joining tissues from two different plants so they grow together as a single plant, often used in fruit tree cultivation?
AGrafting
BGermination
CTranspiration
DPollination
What term describes plants, such as water lilies, that are specifically adapted to grow in water or very consistently waterlogged conditions?
AHydrophytes
BEpiphytes only
CHalophytes only
DXerophytes
Besides light availability, which other environmental factors significantly influence the rate at which photosynthesis occurs in plants?
AThe plant's exact height only
BOnly the color of a plant's flowers
CCarbon dioxide concentration and temperature
DThe time of year exclusively, regardless of other conditions
What term describes an adaptation in which an animal’s coloring or patterning closely resembles its surrounding environment, helping it avoid detection by predators or prey?
ARegeneration only
BMigration
CCamouflage
DHibernation