Q: Why do some dry fruits split open at maturity? Choices: - to release toxins - to regenerate - to release berries - to release seeds A:
to release seeds

Q: What type of waves carry energy through matter or space as vibrating electric and magnetic fields? Choices: - light waves - mechanical waves - sound waves - electromagnetic waves A:
electromagnetic waves

Q: Q: Each protein has its own unique sequence and shape held together by chemical interactions. if the protein is subject to changes in temperature, ph, or exposure to chemicals, the protein structure may change, losing its shape in what is known as this? Choices: - extraction - fermentation - gastrulation - denaturation A:
A: denaturation

Question: Q: What layer is above the mesosphere? Choices: - exosphere - stratosphere - ionosphere - thermosphere A:
Answer: thermosphere

*Question*
Q: In a scientific investigation, what do you call a direct, physical observation of something or a process? Choices: - sighting - declaration - reason - evidence A:
**Answer**
evidence

*Question*
Q: Radar maps of venus show that it has mountains, canyons and volcanoes surrounded by plains of what? Choices: - helium - grasses - water - lava A:
**Answer**
lava